This document contains the daily lesson plans and activities for a science class unit on physical and chemical properties and changes. Over the course of several class periods, students will learn to distinguish between physical and chemical properties, identify examples of each, and determine if a change is physical or chemical through experiments and worksheets. Assessment includes a quiz to test their understanding of these concepts.
Unit Lesson Plan – Matter and Its PropertiesTeacherTime Fra.docxmarilucorr
Unit Lesson Plan – Matter and Its Properties
Teacher:
Time Frame:
17 days
Grade:
7th Grade
School:
Subject:
PSI Middle School Science
NGSS/DCI
MS-PS1-A: Structures and Properties of Matter
Substances are made from different types of atoms, which combine with one another in various ways. Atoms form molecules that range in size from two to thousands of atoms.(MS-PS1-1)
Each pure substance has characteristic physical and chemical properties (for any bulk quantity under given conditions) that can be used to identify it. (MS-PS1-2),(MS-PS1-3)
Gases and liquids are made of molecules or inert atoms that are moving about relative to each other. (MS-PS1-4)
In a liquid, the molecules are constantly in contact with others;
in a gas, they are widely spaced except when they happen to collide. In a solid, atoms are closely spaced and may vibrate in position but do not change relative locations. (MS-PS1-4)
Solids may be formed from molecules, or they may be extended structures with repeating subunits (e.g., crystals). (MS-PS1-1)
The changes of state that occur with variations in temperature or pressure can be described and predicted using these models matter. (MS-PS1-4)
http://www.nextgenscience.org/msps1-matter-interactions
Instructional Objective:
MS-PS1-1.
Develop models to describe the atomic composition of simple molecules and extended structures
Instructional Objective:
MS-PS1-2.
Analyze and interpret data on the properties of substances
Instructional Objective:
MS-PS1-4.
Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed
Essential Questions
(What questions will the student be able to answer as a result of the instruction?)
1. What is matter and how do we measure it?
2. What is an atom and how is it structured?
3. How is the Periodic Table of Elements arranged and what does an element’s placement tell you about the substance?
4. What is the difference between a physical and a chemical property and what are some examples of each?
5. What are the states of matter and what role does thermal energy play in changing matter’s state?Knowledge & Skills
(What skills are needed to achieve the desired results?)
By the end of this unit, students will know:
· Everything in the universe is made of matter.
· Elements are composed of atoms which are simple substances that can’t be broken down into other substances.
· How the Periodic Table is arranged.
· Molecules are combinations of various elements that result in brand new substances.
· Examples of physical and chemical properties of matter and the difference between the two groups.
· How to calculate using the density formula.
· Characteristics of solids, liquids and gases and that thermal energy is responsible for the changes of phases of matter.
By the end of this unit, students will be able to:
· Describe the basic structures of atoms and molecules
· Demonstrate how both mass and volume are me ...
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2. Objective
Students will be able to distinguish
between physical properties and
chemical properties of objects.
3. Physical vs. Chemical
Properties
Fold a blank piece of white paper in half.
One side will be for physical properties
and the other side will be for chemical
properties
Page 8-9
What are they?
Examples???
4. Is it Chemical or Physical?
Read the directions with your group
Who is doing what in the experiment?
Raise your hand when you are ready to
be checked
5. Is it chemical or physical?
When done…
Return graduated cylinders and baking
soda to front table
Rinse off spoon and return to cup with
spoons
Throw away the three cups
Make sure table is cleaned off
Start working on questions
7. Is it Chemical or Physical?
1. Describe the properties of the ingredients that
you used to make the glue.
2. Describe the properties of the glue that you
made.
3. Is making glue an example of a chemical
change or a physical change? Explain how you
know.
4. Did a change in energy occur with this change in
matter? Explain.
8. Changes in Matter Homework
What is a physical change?
What is a chemical change?
How are changes in matter related to
changes in energy?
9. Physical Vs. Chemical
Changes
Each station has a different item or items in a before state and an
after state. You will have to go to each station.
1. Write down what items are at the station in the “Before” section.
2. Write down what items are at the station in the “After” section.
(What is different?)
3. Determine whether or not the items have changed chemically or
physically.
4. Write your reason for choosing that type of change.
5. Repeat for all of the stations.
6. Once complete, return to your seat.
12. Homework
1. Physical and
chemical
2. Chemical
3. Physical
4. Physical
5. Chemical
6. Yes. Exothermic
change; yes,
endothermic
change; no, every
change in matter
involves a change
in energy
7. Matter
8. True
9. True
10. True
11. Exothermic change
12. Endothermic
change
13. Chemical Vs. Physical Changes
Station
Number
Item(s) Before
Change
Item(s) After
Change
Is it Physical or
Chemical?
Reason
1 Ice Water Physical
2 uncooked
pasta
Cooked pasta Physical
3 Stick of chalk Crumbled
chalk
Physical
4 new penny Tarnished
penny
Chemical
5 Lemonade
powder/ water
lemonade Physical
6 Unlit match Lit match Chemical
7 salt/ water Saltwater Physical
8 Alka-Seltzer
tablet/ water
Bubbly water Chemical
9 Pink paper Red/ blue
paper
Chemical
10 Vinegar/
baking soda
salt, water,
CO2 gas
Chemical
18. Properties/ Changes
Worksheet
____________ properties can be observed without chemically changing
matter.
____________ properties describe how a substance interacts with other
substances. ____________ have definite shapes and definite volumes.
____________ have indefinite shapes and definite volumes. ____________ have
indefinite shapes and indefinite volumes.
Phase changes are ____________ changes. ____________ point is the
temperature at which a liquid turns to a solid. It is also equal to the
____________ point which is the temperature at which a ____________ turns
to a ____________. ____________ point is the temperature at which a liquid
turns to a gas, and ____________ point is the temperature at which a gas turns
to a liquid. Occasionally, a solid turns directly into a gas without turning into a
liquid first. This is called ____________.
19. Changes Reading
Read the article on Physical and
Chemical Changes
Highlight
Answer the questions
You may work with a group
