1. Properties, Changes, & Classification of Matter TEST REVIEW

2. Vocabulary Review
A pure substance that cannot be separated into simpler substances by physical or chemical means
Element
The sample of matter, either a single element or compound, that has definite chemical and physical properties.
Pure substance

3. Vocabulary Review
Where would the most dense substance be in a container?
On the bottom
Give an example of a physical change.
Answers will vary – ex. Tearing paper
What happens to an object that is less dense than water when it is placed in water?
Floats

4. Vocabulary Review Two or more elements chemically joined together.
Compound
Combination of two or more substances that are not chemically combined.
Mixture
Homogeneous mixture of two or more substances uniformly dispersed throughout a single phase
Solution

5. Vocabulary Review Name a sign of a chemical change.
Change in color or odor, production of heat or light, production of a gas
True or False? During physical changes, matter always retains its identity.
True
Give an example of a chemical change.
Answers will vary – example: burning

6. Vocabulary Review
Mixture in which particles of a material are more or less evenly dispersed throughout a liquid or a gas and will settle out.
Suspension
Mixture consisting of tiny particles that are intermediate in size between those in solutions and those in suspensions.
Colloid
A measure of the amount of matter in objects
Mass

7. Types of Substances Kool-Aid Water Italian salad dressing Steel Oxygen
Jell-O
Colloid
Compound
Alloy
Suspension
Element
Solution

8. Types of Substances
Kool-Aid F. Solution Water B. Compound Italian salad dressing D. Suspension
Steel
C. Alloy
Oxygen
E. Element
Jell-O
A. Colloid

9. Multiple Choice
A substance that contains a large amount of solute is (dilute or concentrated).
Compounds can be separated by (physical, chemical, or both) means.
(Solution or Colloid) is a homogeneous mixture that scatters light.
True or False? Elements can be broken down.
(Solutions, Elements, or Compounds) are a chemical combination of two or more different atoms.

10. Answers to Multiple Choice
A substance that contains a large amount of solute is concentrated.
Compounds can be separated by chemical means.
Colloid is a homogeneous mixture that scatters light.
False Elements can be broken down.
Compounds are a chemical combination of two or more different atoms.

11. Give the following information for density.
Formula for density
Unit for density
Density of water
Density= mass / Volume
g/mL
1g/mL

12. Tell if the following characteristic is typical of a solution, colloid, or suspension. (You may have more than one answer.)
Heterogeneous
Scatters light
Will settle out
Can be filtered
Homogeneous

13. Tell if the following characteristic is typical of a solution, colloid, or suspension. (You may have more than one answer.)
Heterogeneous - suspension
Scatters light - colloid & suspension
Will settle out - suspension
Can be filtered - suspension
Homogeneous - solution & colloid

14. Identify each picture as an element, compound, solution, colloid, or suspension.

15. VOCABULARY
A pure substance that cannot be separated into simpler substances by physical or chemical means
Element
The sample of matter, either a single element or compound, that has definite chemical and physical properties.
Pure substance

16. Anything that has mass and takes up space
Matter
The amount of space occupied by an object
Volume
Ability to be pounded into thin sheets
Malleability
Ability of a substance to burn
Flammability
Ability of a substance to react with other substances
Reactivity

17. Identify the following as a homogeneous or heterogeneous mixture.
Sandwich
Heterogeneous
Sweet tea
Homogeneous
Italian dressing
Vegetable soup
Air

18. What to study… If you just study this, then you will not be prepared.
You should study your notes, labs, and worksheets from class as well!
Good luck!