Question

1. which state of matter has a very weak attractive force between particles?

a) gas
b) clay
c) liquid
d) solid

1. which process can be used to find the volume of an irregular - shaped solid?

a) displacement
b) buoyancy
c) solubility
d) malleability

1. match the following term with the event

physical property
a) plant making food out of water and co2
b) the wall was blue
c) leaves changing colors in the fall
d) orange juice being made from fresh oranges

1. match the following term with the event

physical change
a) plant making food out of water and co2
b) leaves changing colors in the fall
c) orange juice being made from fresh oranges
d) the wall was blue

1. match the following term with the event/events

chemical change
a) plant making food out of water and co2 plus leaves changing colors in the fall
b) the wall was blue
c) orange juice being made from fresh oranges

1. match the substance with the state of matter

gasoline
a) liquid
b) solid
c) gas

1. match the substance with the state of matter

air
a) liquid
b) solid
c) gas

Explanation:

• For question 8: In gases, particles are far - apart and have weak inter - particle forces.
• For question 10: The volume of an irregular - shaped solid can be found using the displacement method, where the volume of water displaced by the solid is equal to the volume of the solid.
• For question 11: A physical property is a characteristic of a substance that can be observed without changing the substance's chemical identity. The color of a wall is a physical property.
• For question 12: A physical change is a change in the form or appearance of a substance without changing its chemical composition. Leaves changing color in the fall and orange juice being made from fresh oranges are physical changes.
• For question 13: A chemical change is a change in which one or more substances are converted into different substances. A plant making food (photosynthesis) is a chemical change.
• For question 14: Gasoline is a liquid at room temperature.
• For question 15: Air is a gas.

Answer:

1. a. gas
2. a. displacement
3. b. the wall was blue
4. b. leaves changing colors in the fall, c. orange juice being made from fresh oranges
5. a. plant making food out of water and CO2
6. a. liquid
7. c. gas