Physical Science Lesson 4 unit 2 questions, I need the answers

1. Flammability is a material's ability to burn in the presence of...

A.Hydrogen.
B.Nitrogen.
C.Oxygen.
D.Carbon Dioxide.

2. Which of the following is NOT a clue that a chemical change has occurred?

A.Change in color
B.Production of gas
C.Formation of a precipitate
D. Change in shape

3.Which of the following is a chemical change?

A.Ice melting
B.Ice being carved
C.Water boiling
D.Water breaking down into hydrogen and oxygen

4. Which of the following NOT a pure substance

A.Milk
B.Oxygen
C.Water
D.Carbon dioxide

5. Matter that has a definite volume but no definite shape is a...

A.Liquid
B.Solid
C.Gas
D.Plasma

6. Forces of attraction limit the motion of particles most in...

A. A solid
B. A liquid
C. A gas
D. Both B and C

(Fill in the blanks)

7.A(n)________ change occurs when a material changes shape or size but the composition of the material does not change.

8. _________properties can be observed only when the substances in a sample of matter are changing into different substances.

9. Materials can be classified as solids, liquids, or gases based whether their shapes and____________are definite or variable.

10. The________theory of matter states that all particles of matter are in constant motion.


thanks in advance (also it took forever to type all the lol..)