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Science Workshop for Parents 2017 - Lower Block
School of Excellence, Individuals of Character
8 April 2017
Aims of Learning Science • provide students with experiences which build on their
interest in and stimulate their curiosity about their
environment
• provide students with basic scientific terms and concepts
to help them understand themselves and the world around
them
• provide students with opportunities to develop skills,
habits of mind and attitudes necessary for scientific
inquiry
• prepare students towards using scientific knowledge and
methods in making personal decisions
• help students appreciate how science influences people
and the environment
2 School of Excellence, Individuals of Character
Coverage of Workshop
1) Coverage of Syllabus in P3 and 4
2) Teaching Lower Block Science
3) Question Type and Answering Techniques
4) Alternative Conceptions
5) Interesting websites on Science
6) Q & A session
3 School of Excellence, Individuals of Character
1) Science Syllabus
4 School of Excellence, Individuals of Character
Part 1: Lower Block Science Syllabus
5 School of Excellence, Individuals of Character
Five themes
Cycles
Primary 3 Primary 4
Living
and
Non-
Living
Things
Materials
Diversity Systems Cycles Systems Systems Systems Energy Systems Interactions
Cycles
in plants
and
animals
Matter
Plant
parts and
functions
Human
systems –
Digestive
system
Light
and
heat
energy
Magnets
5
The Primary Science Syllabus
Where
do we
get a
copy of
the
2014*
syllabus
?
http://www.moe.gov.sg/education/syllabuses/sciences/files/scie
nce-primary-2014.pdf 6 School of Excellence, Individuals of Character
Summative Assessment – P3
SA1 (Term 2) SA2 (Term 4)
Diversity Living and Non-living things Plants Animals Fungi & Bacteria Exploring Materials
Living and Non-living things Plants Animals Fungi & Bacteria Exploring Materials
Cycles Life cycles of some animals Life cycles of plants Matter
Weightage 50 marks – SA1 (100%)
80marks – SA2 (100%)
Overall 50% 50%
7 School of Excellence, Individuals of Character
Summative Assessment – P4 SA1 (Term 2) SA2 (Term 4) *SBB
Systems Body Systems Plant Systems
Body Systems Plant Systems
Energy Light Energy Light Energy Heat Energy
Interactions Magnets & their Properties Making Magnets Using Magnets
P3 topics P3 – Cycles Life cycles of some animals and plants Matter
Weightage 100 marks - CA 100 marks – SA2
Overall 50% 50%
8 School of Excellence, Individuals of Character
Things to note – not required • Pupils are only required to identify the muscular and skeletal
system. Detailed knowledge of the muscular and skeletal systems (such as names of the bones/muscles in the body and descriptions of how they work) are not required.
• Pupils are only expected to know that Iron and Steel are magnetic materials. Recall of other magnetic materials such as nickel and cobalt is not required.
• The laws of reflection are not required.
• Recall of the rate of heat transfer of specific materials (such as different types of metals) is not required.
• Pupils are not required to recall names of specific living things (e.g. guppy) and their characteristics (e.g. give birth to young alive)
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Example Look at the pictures below. Animal X Animal Y Animal X is similar to Animal Y because they have ________________. A: feathers B: 3 body parts C: wings D: beaks (1) A and C only (2) C and D only (3) A, C and D only (4) All of the above
11 School of Excellence, Individuals of Character
Science Process skills 1) Observing 2) Comparing 3) Classifying 4) Inferring 5) Predicting 6) Analysing 7) Evaluating 8) Communicating 9) Generating
possibilities
10) Formulating hypothesis
11) Creative Problem Solving
12) Decision-making
13) Investigation
12 School of Excellence, Individuals of Character
Process Skills in Primary Science Comparing (L)
Identifying the similarities and differences between two or more objects, concepts or processes.
Classifying (L)
Grouping objects or events based on common characteristics.
Inferring (L)
Interpreting or explaining observations or pieces of data or information.
Analysing (H)
Identifying the parts of objects, information or processes, and the patterns and relationships between these parts.
Evaluating (H)
Assessing the reasonableness, accuracy and quality of information, processes or ideas and also the quality and feasibility of objects.
Communicating (H)
Transmitting and receiving information presented in various forms – written, verbal, pictorial, tabular or graphical.
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2) Teaching Lower Block Primary Science
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Helping your child to revise Science Importance of key concepts / ideas
Strategies for recall
Mnemonics
Mind maps / concept maps
Hands-on with mnemonics and concept maps/mind maps
Online resources for drawing concept maps and mind maps
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Importance of key concepts and ideas
Key ideas are concepts that are
explained/expressed using scientific vocabulary.
Scientific vocabulary are scientific words used in
science that have specific meanings, different from
daily usage.
Key concepts are the main scientific ideas that
explains why/how something occurs.
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Importance of key concepts and ideas
Scientific vocabulary are used in answers to explain
scientific concepts better, with lesser room for errors.
The current testing of Science is on scientific concepts
and their application in different situations.
There is a need to relate how an answer relates to a
concept or how the concept is applied.
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Strategies to help in recalling
Mnemonics Is a learning technique that aids memory. To
improve long term memory, mnemonic systems are
used to make recall easier as it helps us to organise,
retain and remember information.
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Strategies to help in recalling Steps to create Mnemonics
1.Take the information that you need to remember
and choose one word out of each of the phrases
that is meaningful.
2.Choose the first letter from each of these words.
3.Make a word (acronym) or sentence from it or a
combination from it.
4.The sentence should be made easy to remember
by making it humorous.
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Strategies to help in recalling
Mnemonics (example)
four magnetic materials: iron, steel, nickel and cobalt.
We take the first letter of each word, iron, steel, nickel
and cobalt and make a word or sentence.
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I saw Nicholas Cage I S N C
Strategies to help in recalling
Mind maps
•a diagram
•represent words, ideas, tasks, or other items linked
•arranged around a central key word or idea
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Strategies to help in recalling
School of Excellence, Individuals of Character
Strategies to help in recalling
Concept maps
•a diagram showing the relationships among concepts
•a graphical tool for organizing and representing
knowledge
•represented as boxes or circles, are connected with
labeled arrows in a downward-branching hierarchical
structure
•linking phrases such as "gives rise to", "results in", "is
required by" or "contributes to"
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An example
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Plants leaves Roots Flowers Stem Water Fruits
Seeds Food
Nutrients
Plants
leaves Roots Flowers Stem
Fruits
Seeds
Water Food Food Water Nutrients
has has has
has
changes into transports absorbs makes
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Uses of mind maps and concept maps
Helping children to recall previous knowledge and
identify areas with misconceptions or that have been
forgotten.
Helping pupils to understand and retain latest
knowledge.
Connecting prior knowledge with new knowledge.
Identify things that pupils have forgotten or has not
been able to make connections.
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3) Answering Techniques for Different Question Types
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Design of experiment
Fair test
Variables
Control
Repeated trials
Taking measurements
Results and conclusion
A Good Experiment
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Strategy to understand the Q Depends on question but generally can apply the following strategy:
4Is and an A
Identify : Information in question
Topic related to question
Concept(s) taught
Scientific vocabulary to be used
Answer: Formulate your answer
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1. Identify and interpret the key information given in the question.
(highlight/annotate)
2.Identify the topic and concept(s)
applicable to the question.
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Strategy to understand the Q
Identify and interpret the key information given in the question. (highlight/annotate)
Study the following table carefully. The table
below shows the characteristics of 5 organisms,
V, W, X, Y and Z.
Organism Moves from
place to place
Makes its own food
Responds to changes
Able to reproduce
V √ √
W √ √ √
X √ √ √
Y √
Z √ √
Which of the organism(s) in the above table can be classified as living things? [1m]
Headings Characteristics of Living Things
35 School of Excellence, Individuals of Character
Study the following table carefully. The table below shows the
characteristics of 5 organisms, V, W, X, Y and Z.
Organism Moves from
place to place
Makes its own food
Responds to changes
Able to reproduce
V √ √
W √ √ √
X √ √ √
Y √
Z √ √
Which of the organism(s) in the above table can be classified as living things? [1m]
Topic: Diversity
Concept: All living things are able to reproduce. Thus W, X and Z are living things.
36 School of Excellence, Individuals of Character
3. Answer the question in the appropriate manner
using most appropriate words (scientific vocabulary) to express answer.
4. When asked to explain, it is important to link how the concept is applied in the situation given.
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Strategy to understand the Q
Answer the question in the appropriate manner using most appropriate words (scientific
vocabulary) to express answer.
It shows that heat reduces/weakens/loses/ lower down / take away some of the magnetic force /magnetism.
Rachel carried out the activity shown below.
What does the experiment above show about the effect of heat on magnetism? [1]
38 School of Excellence, Individuals of Character
Some question words… 1. State – To write down a fact
2. Relationship – How the variable tested affects the
observation
3. Explain – link science concept into explanation
4. Compare – to group things based on common
characteristics
5. Classify – to identify similarities and differences
between objects, concepts or processes
39 School of Excellence, Individuals of Character
Some question words…
6. Why – Give reason
7. What – stating some observation, variable,
object etc…
8. Which – choose the right object, variable etc…
9. When - time
10. How – method. way of doing something etc…
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Types of Questions
1) Identify / State 2) Similarity and Differences 3) Aim / Hypothesis 4) Relationship / Conclusion 5) Variables 6) Fair Test 7) Explanation Questions
41 School of Excellence, Individuals of Character
1) Identify / State Questions
Gabriel classified some animals into two groups, A and B, as shown below.
Group A Group B
Grasshopper Chicken
Beetle Sparrow
Butterfly Pigeon
Cockroach Flamingo
State two characteristics that the animals in Group B have.
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1) Strategy State Question
Topic: Diversity
Concept: Characteristics that are unique to insects and birds
Pupil A Pupil B
Ans : <incomplete ideas> • They have a pair of wings.
(Insects also have a pair of wings.)
• They don’t give birth to young alive. (Method of reproduction is not spelled out.)
Ans : <acceptable> • They have feathers as their
outer covering. • They have beaks.
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1) Identify / State Questions
Study the two groups of objects below.
The objects in groups, X and Y, have one property that a paper bag does not have.
Identify this property.
Group X Group Y
coin sewing needle raincoat plastic bag
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1) Identify - Example
Topic : Diversity
Concept : Property of material
Observe (O) : The material of the objects in Group X is plastic while the material of the objects in Group Y is metal. The paper bag is made of paper.
Interpret (I) : The objects are made from different materials.
Conclude (C) : Classification is based on the property of the materials of the objects shown.
Ans : The objects in groups, X and Y, are waterproof unlike the paper bag that is not waterproof / absorbent.
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2) Similarity and Differences Questions
Study the following pictures carefully.
(a) Compare and state one difference between the movement of water in a plant and the movement of blood in a human body.
(b) Give a similarity between the transport system in a plant and a human body.
roots stem leaves lungs heart Rest of the body
Movement of water in a plant Movement of blood in a human body
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2) Similarity and Differences Q - Example
Topic : Systems
Concept : transport systems in a plant and a human body
Observe (O) : observe the 2 transport systems and recognise their similarities and differences (by means of the arrows in the diagrams)
Interpret (I) : (a) Water moves through the stem once while blood passes through
the heart twice. (b) Both transport water and nutrients throughout the organisms.
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Ans : (a) Water moves through the stem once while blood passes through the heart twice. (b) Both transport water and nutrients throughout the organisms.
Question
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Sue placed a leather shoe in each of two identical boxes, A and B. She also placed a packet of silica gel in box A. Silica gel absorbs moisture. The two boxes were then covered and placed in a corner of a room.
After three weeks, Sue found some grey powdery substance on the shoe in box B. This was not observed on the shoe in box A.
(a) What could this grey powdery substance be? (b) Where did this grey powdery substance come from?
Question - Example
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Topic : Cycles
Concept : Conditions which mould will grow.
Observe (O) : Both boxes were covered. In Box A, there was silica gel while in Box B, there was some grey powdery substance.
Interpret (I) : Silica gel that absorbs moisture implies a dry environment. Covered boxes implies a dark and warm environment. Conclusion (C) : Environment in Box A is dry and warm while environment in Box B is moist and warm.
Pupil A Pupil B
Ans : (a) It can be mould.
Ans : (a) It can be fungi.
(b) It came from the spores on the shoe.
(b) Mould tend to grow in warm and moist environment.
Question
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(a) Ali inverted a clear plastic cup and push it down completely into the tub of water as shown below. Did the water level in the cup rise? Why?
(b) While the inverted plastic cup is still in the water, pierce a hole at the base of the cup with a thumbtack. Explain why the water level in the cup starts to rise.
Question - Example
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Topic : Diversity
Concept : Air occupies space. Water cannot be compressed (due to its definite volume).
Observe (O) : decide the observation – The water level did not rise in the cup.
Interpret (I) : Air occupies space in the cup.
Conclusion (C) : Water therefore cannot enter as air occupies the space in the cup.
Pupil A Pupil B
Ans : No. Air occupies space.
Ans : No. The air in the cup occupies the space and prevents water from entering the cup.
OR Yes, the water level rises slightly in the cup as air can be compressed. The air in the cup occupies the space and prevents water from entering the cup.
Question - Example
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Topic : Diversity
Concept : Air occupies space. Water cannot be compressed (due to its definite volume).
Observe (O) : The water level in the cup starts to rise when a hole is being pierced at the base of the cup.
Interpret (I) : Volume of water in the cup increases as the air escapes through the hole.
Conclusion (C) : Air has escapes through the hole and water moves in to takeover the space previously occupied by the air.
Pupil A Pupil B
Ans : Air escapes through the hole.
Ans : The air in the cup escapes through the hole. As air leaves the cup, water enters from the tub into the cup to fill the space.
Question
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Sam conducted an experiment using 3 rectangular boards, A, B and C, which were made of different materials. Using the set-up shown below, he continued adding 1kg weight onto the board until it breaks. He recorded the amount of weights that each board could support before breaking.
(a) Which property of the rectangular board was he testing? Ans : Strength of the rectangular board (b) Which board is the most suitable for making a book shelf? Explain your answer.
Question - Example
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Pupil A Pupil B
Ans : <Incomplete and without comparison> B. It could support 4kg of weights.
Ans : <acceptable and substantiated by comparison> B. It could support the greatest amount of weights among the three boards.
Topic : Diversity
Concept : Strength of Material
Observe (O) : to explain the board which is the most suitable for making a book shelf
Interpret (I) : The board which will be the most suitable for making a book shelf must be strong enough to take the mass of the books.
Conclusion (C) : Board B is the strongest among the 3 boards.
Question
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Young
Plant
Seed
leaves
If the seed leaves are removed from the young plant, the plant will not continue to grow. Explain why.
Question - Example
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Topic : Cycles
Concept : Seed leaves provide food for germinating seed.
Observe (O) : The young plant will not continue to grow if the seed leaves are removed.
Interpret (I) : Seed leaves are important to the plant’s growth.
Conclusion (C) : Without seed leaves, young plant needs to make its own food using its leaves. The leaves have however not grown yet.
Ans: The leaves have not appeared yet (½m) and cannot make its own food (½m) so it depends on the seed leaves for food. (1m)
3a) Aim - Question Siti set up the experiment below.
Siti measured the length of the shadow created by the ball at different values of Distance X as shown in the table above.
What is the aim of her experiment?
Scre
en
Distance X
Len
gth
of
shad
ow
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Distance X (cm) Length of shadow (cm)
10 24
12 20
14 13
16 10
Aim of experiment/hypothesis: Is what an experiment is testing. Most are given in statements like “to find out….” / “to investigate…” Combines variable altered/changed/tested with the observation/results/measurements Eg. To find out how the surrounding temperature (variable changed) affects the rate of evaporation of water (measured)
3b) Aim / Hypothesis
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One way to remember how to answer Aim questions is to use this structure: A (altered) i M (measured) He / she wanted to find out how (what she altered) affects (what she measured)
3b) Aim / Hypothesis
59 School of Excellence, Individuals of Character
3c) Aim - Answer Siti set up the experiment below. Siti measured the length of the shadow created by the ball at different values of Distance X as shown in the table above. What is the aim of her experiment? She wanted to find out how (What she Altered) affects (what she Measured). She wanted to find out how Distance X affects the length of the shadow.
Scre
en
Distance X
Len
gth
of
shad
ow
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Altered
measured
4I
Hashim sets up the following experiment below. He measured the height of both Plant X and Plant Y over a few weeks. What is the aim of his experiment?
3d) Aim – You try!
Plant X Plant Y
4a) Relationship / Conclusion Question
The results of Siti’s experiment is shown below. What is the relationship between Distance X and the Length of the shadow?
Scre
en
Distance X
Len
gth
of
shad
ow
Distance X (cm) Length of shadow (cm)
10 24
12 20
14 13
16 10
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Relationship : To state how changes / patterns in the variable changed (tested) affects the observations/ measurements. (from graph / results table) (eg. as …increases, ….increases/decreases) Eg. As the temperature increases, the rate of evaporation increases. Conclusion : answers the aim of the experiment
4b) Relationships / Conclusions
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4c) Relationship / Conclusion - Answer
The results of Siti’s experiment is shown below. What is the relationship between Distance X and the Length of the shadow? The greater the Distance X, the shorter the length of the shadow. What can you conclude about this experiment? When Distance X increases, the length of shadow decreases.
Scre
en
Distance X
Len
gth
of
shad
ow
Distance X (cm) Length of shadow (cm)
10 24
12 20
14 13
16 10
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Distance X increases
Length of shadow decreases
4I
In the experiment below, Roxanne wanted to test how the thickness of Material A affects the time taken for an ice cube to melt. The results of her experiment is shown in the table.
4d) Relationship – You try!
Thickness of Material A
Thickness of Material A(cm) Time taken for ice cube to melt (min)
5 3
10 7
15 10
20 15
Lid
What is the relationship between the thickness of Material A and the time taken for the ice cube to melt?
5a) Variable Questions Tom wanted to check whether the thickness of Material B affects how many paper clips a magnet can attract. What is the variable that he must change? What are the variables that he must keep the same?
Thickness of material B Height Z
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Independent variable is the variable tested (Only ONE variable is changed for an experiment). It is the difference between experimental and control set-ups.
Controlled variables are all other variables kept constant for the experiment that would affect the results.
Dependent variable are the observations and measurements to be taken for an experiment.
5b) Variables
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Usually, the variable that he wants to test out (and therefore, the only one that he must change) is found in the question stem. The experiment is trying to find how a variable changes the results of the experiment. Therefore, we must keep all other variables the same to ensure a fair test.
5b) Variables
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5c) Variable - Answer Tom wanted to check whether the thickness of Material B affects how many paper clips a magnet can attract. What is the variable that he must change? The variable is the thickness of Material B. What are the variables that he must keep the same? Height Z, Number of paper clips, Type of magnets etc.
Thickness of material B Height Z
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Variable to be tested
4I
Raja wanted to test how the thickness of Material P affects the amount of light measured by the data logger.
5d) Variable – You try!
What variable must he change? What variable must he keep the same?
Data logger
6(a) Fair test / control - Question Tom wanted to check the strength of 3 different magnets.
Is this a fair test?
Mag
net
A
Mag
net
B
Mag
net
C
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Fair test: an experiment where only one variable is changed to ensure that the results are due to the independent variable.
Accuracy: Experiments need to be repeated at least three times to ensure that measurements are accurate without errors.
6b) Control / Fair test
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6(a) Fair test / control - Question Tom wanted to check the strength of 3 different magnets.
Is this a fair test? No. Only one variable (magnets) must change for an experiment to be fair. The heights that the magnets are hung from and the amount of paper clips below each magnet must be the same.
Mag
net
A
Mag
net
B
Mag
net
C
How many variables are changed in this
experimental set-up?
4I
James wanted to find out whether the amount of leaves affects the height of a plant. He prepared the two set-ups shown below.
6d) Fair Test – You try!
Is this a fair test? Why?
7(a) Explain - Question
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Glass A and Glass B are stuck together as shown below. Sandra added ice into Glass B to help separate the 2 glasses. Explain how the glasses are able to separate when she added the ice into the cup?
Glass A Glass B
Ice
Explain questions are among the hardest questions to get correct. This is because the student needs to provide appropriate scientific reasoning and concepts to explain a phenomenon. Using the OIC method, we can explain a given phenomenon, provided that we have sound scientific reasoning.
7b) Explain
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O – Observation (what is seen or predicted to happen / what needs to be done to a particular experimental set-up to achieve its objective. ) I – Interpretation (Tying in of concepts and how it relates to phenomenon) C – Conclusion (Explaining or predicting what will happen)
7b) Explain - OIC
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7(c) Explain - Answer
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Explain how the glasses are able to separate when she added the ice into the cup? O – For the cup to be separate, Glass B needs to contract. I – Since the Glass B is hotter than the ice, Glass B would lose
heat to the ice and the glass would contract. C – Therefore, the glasses could be separated as Glass B contracts
and becomes smaller.
Glass A Glass B
Ice
4I
Importance of key concepts and words • Key words are scientific words used in science that have specific
meanings, different from daily usage.
• Key concepts are the main scientific ideas that explains why/how something occurs.
• Key words are used in answers to explain scientific concepts better, with lesser room for errors.
• The current testing of science is on scientific concepts and their application in different situations.
• There is a need to relate how an answer relates to a concept or how the concept is applied.
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Example 1
Mr Lim switched on the lamp in the room and saw the book on the table.
Explain why Mr Lim is able to see the book on the table.
He switched on the lamp.
There is light in the room.
Key concept: Reflection of light
The light from the lamp travelled to the book and is reflected into Mr Lim’s eyes.
Grandmother statements
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Example 2 Siva poured the water at room temperature into a cup and added ice cubes to cool it.
She observed that the temperature of the water dropped to 10oC before increasing again. Why do you think it is so?
The ice is cold.
All the ice melt. There is no more ice after that.
There are only 4 ice cubes.
The water take the coldness from the ice. (MISCONCEPTION)
Key concept: Heat transfer
The water lost heat to the ice cubes, so its temperature dropped to 10oC. After all the ice has melted, the water gained heat from the surroundings and its temperature increased.
Grandmother statements
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Example 3 Sam used a bar magnet to test whether Material A is a magnet. What must we observe to show that Material A is a magnet? Why? Material A is attracted to the magnet. So, A is a magnet. The magnet moves away from the material. Test for magnets is attraction. (MISCONCEPTION) Key concept: Repulsion as test for magnets. Material A is repelled by the magnet. Only magnets can repel each other.
Incomplete statements
N S Material A
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4) Alternative Conceptions
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Alternative Conceptions
• Refers to the misconceptions that we have when interact with the environment around us.
• Due to our need to reason out phenomenon.
Alternative Conceptions (Kahoot!)
• We will be using Kahoots to test out our misconceptions.
• Using your smartphone or tablet, go to:
https://kahoot.it
Game pin: 8958890 • Enter your nickname and wait for the quiz to
start.
Misconceptions No Question True False
1. A spider is not an insect.
2. Fungi are classified as non-flowering plants
3. Not all types of bacteria are harmful
4. Plants are non- living things because they do not move from place to place
5. A whale is a type of fish.
6. Mass and weight are two different things.
7. Food is digested in only certain parts of the digestive system
8. A mirror is not a source of light.
9. Some materials are colder than others. E.g. a metal cup is colder than a foam cup.
10. When two objects are attracted to each other, both of them are magnets.
5) Interesting Science Websites
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Science Around Us • Rivervale PS Science website
http://rivervalescience.wixsite.com/website • Newspapers • National Geographic or Discovery Channel
– ‘None of the above’ – ‘The Magic of Science’ – ‘Mythbusters’
• Simple experiments at home • Young Scientist Magazines • National Geographic Magazines / website • Science Adventures (popular bookstore) • Science Spy (popular bookstore)
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Where to get the ideas for experiments? - Magazines, newspapers, internet
What should I keep in mind when doing experiments with my kids - Safety - Helping your child to see the aim, conclusion, variables
Example: - opening a toy to look at the parts - balloons and static electricity
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• opening a can with can opener
• cooling drinks
• fogging on the toilet mirror
• boiling water, cooking
• observing plants
• heating of electrical devices, etc etc…
Science is all around us! 94 School of Excellence, Individuals of Character
Fun websites for kids
•How Stuff Works http://www.howstuffworks.com
•National Geographic kids http://video.nationalgeographic.com/video/kids/
•National Geographic channel http://video.nationalgeographic.com/video/national-geographic-channel
•Discovery channel kids http://kids.discovery.com/tell-me
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