Unit 1: Chemistry and Matter Ms. Knick HASD. Directions/ Instrucciones: Complete your note outline...
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Unit 1: Chemistry and Matter Ms. Knick HASD. Directions/ Instrucciones: Complete your note outline at your own pace. Do the activities! Complete su nota
Directions/ Instrucciones: Complete your note outline at your
own pace. Do the activities! Complete su nota contorno a su propio
ritmo. Las actividades!
Slide 3
What is Chemistry? Chemistry is the study of the composition,
structure, and properties of matter and the changes it
undergoes
Slide 4
6 Branches of Chemistry 1.Organic Chemistry- The study of most
carbon containing compounds. Example: C 6 H 12 O 6 (Sugar)
Slide 5
6 Branches of Chemistry 2. Inorganic Chemistry- The study of
all substances that do not contain carbon. Example: H 2 O
(Water)
Slide 6
6 Branches of Chemistry 3. Physical Chemistry- the study of the
properties, changes, and relationship between energy and
matter
Slide 7
6 Branches of Chemistry 4.Analytical chemistry- the
identification of the components and composition of materials.
Slide 8
6 Branches of Chemistry 5. Biochemistry- the study of
substances and processes occurring in living things. Example:
Photosynthesis
Slide 9
6 Branches of Chemistry 6. Theoretical Chemistry- the use of
mathematics and computers to design and predict the properties of
new compounds.
Slide 10
Activity/Actividad #1: Watch the video below by clicking the
link. You may use your earphones, or ask Ms. Knick for earphones!
Mira el vdeo a continuacin, haga clic en el enlace. Usted puede
usar sus auriculares, o pedir a la Sra Knick para auriculares!
http://www.ck12.org/chemistry/Areas-of-Chemistry/lecture/Five-
Branches-of-Chemistry/?referrer=featured_content
Slide 11
Activity/Actividad #2:
http://www.ck12.org/chemistry/Areas-of-Chemistry/ Take the practice
quiz below by clicking the link. Haga la prueba prctica a
continuacin, haga clic en el enlace.
http://www.ck12.org/chemistry/Areas-of-
Chemistry/asmtpractice/Areas-of-Chemistry-Practice
Slide 12
Activity/Actividad #3: When you have complete activity #1 and
#2, find Ms. Knick for your homework assignment. You must begin the
assignment in class. You may work with a partner who has completed
activity #1 and #2. Cuando usted tiene la actividad completa # 1 y
# 2, encontrar la Sra Knick por su tarea. Usted debe comenzar la
tarea en clase. Usted puede trabajar con un socio que ha completado
la actividad # 1 y # 2.
Slide 13
The Scientific Method 1. Observation 2. Formulate a Hypothesis
3. Experiment 4. State the results/theory Tro, Chemistry: A
Molecular Approach 13
Slide 14
14 Observation Acquiring information or data using your senses.
Some observations are simple descriptions The soda pop is a liquid
with a brown color and a sweet taste. Bubbles are seen floating up
through it. Some observations compare a characteristic. A 240-mL
serving of soda pop contains 27 g of sugar.
Slide 15
15 Hypothesis Making an educated guess based on your
observations and previous knowledge: The sweetness of soda pop is
due to the presence of Sugar or Aluminum
Slide 16
1 Experiments Test your hypotheses with a taste test: sugar and
aluminum. Theory State your experimental findings. This is not the
same as a scientific law. Sugar is sweet
Slide 17
Measuring with a Ruler
Slide 18
Matter and Properties Mass is the measure of the amount of
matter. Matter is anything that has mass and volume (occupies
space). Examples: You, me, your desk, air, smoke, water
vapor..
Slide 19
Matter and Properties An atom is the smallest unit of an
element that maintains the properties of that element.
Slide 20
Pure Matter Two types: 1. Elements 2. Compounds
Slide 21
Pure Matter An element is a pure substance made of only one
kind of atom. They are organized in the Periodic Table. A Compound
is a substance that is made from the atoms of two or more elements
that are chemically bonded. Example: NaCl (two elements JOINED
together)
Slide 22
Impure Matter A mixture is impure matter A mixture is a blend
of two or more kinds of matter, each of which retains its own
identity and properties and can be separated physically.
Slide 23
Mixtures Two types of mixtures: 1. Heterogeneous 2. Homogeneous
Homogeneous (also known as solutions) have uniform composition
throughout. Examples: air, sugar in water, stainless steel.
Heterogeneous are not uniform. Examples: granite, wood, blood.
Slide 24
Homogeneous vs. Heterogeneous
Slide 25
Matter Can it be separated? Mixtures Is the composition
uniform? Homogenous Mixtures Air, sugar in water, stainless steel
Heterogeneous Mixtures Granite, wood, blood YESNO Pure Substances
Can it be decomposed by ordinary chemical means? Compounds Water,
sodium chloride, sucrose Elements Gold, aluminum, oxygen YESNO
YESNO
Slide 26
Separation Techniques A mixture can be separated using physical
means. Separation Techniques include using: A magnet Evaporation
Distillation Chromatography Centrifugation Separating Funnel
Slide 27
Problem: You obtain a mixture of iron, sand, salt and water.
Describe how each substance can be separated using the separation
techniques discussed. You will use more than one separation
technique. Tro, Chemistry: A Molecular Approach 27
Slide 28
Physical Properties Physical properties can be observed or
measured without altering the identity of a material. Example:
color, texture, melting point, state of matter.
Slide 29
3 states of matter 1.Solids have definite shape and volume.
Particles are packed closely together. 2.Liquids have definite
volume but, no shape 3. Gases have neither a definite volume nor
definite shape.
Slide 30
States of Matter
Slide 31
Physical Changes Physical change is any change that does NOT
result in a change in identity. Examples cutting wire, crushing a
solid, gas expanding. Changes in state of matter is a physical
change. Example: melting, boiling, freezing.
Slide 32
Chemical Properties Chemical Properties relates to a substances
ability to undergo changes that alters its identity. Example a
chemicals reactivity.
Slide 33
Chemical Change Chemical change is when a substance is
converted into different substance. Examples milk souring, leaves
changing color in the fall. The process CANNOT be reversed.
Slide 34
Signs of a Chemical Change 1. Color Change 2. Heat and/or light
is produced 3. Bubbles form (gas) 4. A precipitate is produced (A
precipitate is a solid)
Slide 35
The Periodic Table Periodic table of elements is divided into
small squares that have one element in each square. Elements have
been named from their Latin meaning, places, famous scientists and
from mythology.
Slide 36
Family or groups- vertical columns (18) Period- horizontal rows
(7) Metals- ductile, malleable, lustrous, conduct heat and
electricity, high tensile strength Nonmetals- brittle, dull, poor
conductor Metalloids (also known as semi- metals)- have some
characteristics of metals and nonmetals.