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Introduction to…
Miss Charney
Northville Central School
So…what is it?
Science is a way of learning about the natural world.
Therefore…
Life Science (or biology) is a way
of learning about the natural living
world.
How can we learn?
You can learn by using your 5 senses
1. Sight
2. Hearing
3. Touch
4. Taste
5. Smell
Information please!
Observing uses your 5 senses to gather information in 2 different forms
Quantitative observations are descriptions by number
Example: 3 students are missing
Qualitative observations deal with descriptions not using numbers
Example: The green grapes are sour.
Can you explain that?!
Inferring is when you explain or interpret the things you observe based on what you already know (reasoning)
Example: You see a classmate smile after getting back an exam. You assume that the student received a good grade.
**Are inferences always correct??**VITAMIN C
“100% chance of weather”
Predicting means making a forecast of what will happen in the future based on past experience or evidence.
Example: You predict your mom will ground you if you bring home a bad grade. This is based on your brother being grounded the last time he brought home a bad grade.
Which of these does not belong?
Classifying is the process of grouping together items that are alike in some way.
Example: You classify your class papers in your binders into notes, homework, labs, etc.
“If it doesn’t say Micro machines…”
Making models involves creating representations of complex objects or processes.
Example: You are trying to give your friend directions to your house, but they aren’t understanding….you draw them a map
Inferences vs. PredictionsSlide One
Tommy missed the bus and arrived at school late. He must have overslept.
Inferences vs. PredictionsSlide Two
I see Zach studying his notes. In the past he has done
well after studying…I think he will do well
on the quiz tomorrow.
Inferences vs. PredictionsSlide Three
I see a broken egg on the floor! It must have rolled off of that table.
Inferences vs. PredictionsSlide Four
That egg is rolling toward the edge of
the table! It is going to make such a
mess!!
Inferences vs. PredictionsSlide Five
There are a line of dark clouds in the
sky coming this way. I think it is going to
storm soon!
Problem:
Say you were faced with the problem in which your
grandmother’s rose bushes were dying. What major steps would you take in order to bring them
back to life?
How to Solve the Problem
Scientific Inquiry is the way in which scientists study the natural world and come up with explanations based on the evidence that they gather
The Riddle:
Queen
Helga
Eats
Dry
Cereal
Queen
Questioning happens after facing a problem or a question about an observation.– must be scientific
Helga
Hypothesis is a possible explanation or answer to what you observe
Always Begin With…
“My hypothesis is…”
Example: My hypothesis is a plant will grow taller if it is given 1 cup of water a day.
Eats
Experimental Design is how you plan to test your hypothesis
Experimental Design Components
Variables are factors that can change in an experiment
Example: the amount of water, height of plant
Two Types of Variables
Independent variables are purposely changed to test a hypothesis
Example: amount of water given
Dependent variables are the factors that may change in response to the independent
Example: height of plant
A must have…
A control is the group that is not being tested
Example: A plant under normal conditions being given the standard amount of water.
The Set-up
Control group (Plant 1) – plant watered whenever looks dry
Variable group:
Plant 2 – ¼ cup of water per day
Plant 3 – ½ cup of water per day
Plant 4 – ¾ cup of water per day
Plant 5 – 1 cup of water per day
Dry - Data Collection
Plant Amount of Water a Day
Height
Control
Plant 2
Plant 3
Plant 4
Plant 5
Example Graph
• See board!
Cereal
Conclusions are a summary of what you have learned from an experiment
Accept or Reject Hypothesis?
Accept – data supports hypothesis
Reject – data does not support hypothesis
