States of matter & changing state 🌷

Question 1

What are the three primary states of matter?

Answer 1

Solid, liquid, gas.

Question 2

True or False: In a solid, particles are arranged randomly.

Answer 2

False.

Question 3

Fill in the blank: The process of a solid changing to a liquid is called __________.

Answer 3

melting.

Question 4

What state of matter has a definite shape and volume?

Answer 4

Solid.

Question 5

Which state of matter takes the shape of its container but has a definite volume?

Answer 5

Liquid.

Question 6

True or False: Gases have a fixed volume.

Answer 6

False.

Question 7

What is the process called when a liquid turns into a gas?

Answer 7

Evaporation.

Question 8

What happens to the particles in a substance when it freezes?

Answer 8

They lose energy and move closer together.

Question 9

Multiple Choice: Which of the following is NOT a state of matter? A) Plasma B) Ice C) Water D) Dust

Answer 9

D) Dust.

Question 10

Fill in the blank: The process of a gas changing to a liquid is called __________.

Answer 10

condensation.

Question 11

What state of matter has particles that are very far apart and move freely?

Answer 11

Gas.

Question 12

True or False: Heating a substance generally increases the energy of its particles.

Answer 12

True.

Question 13

What is the term for the temperature at which a solid becomes a liquid?

Answer 13

Melting point.

Question 14

Fill in the blank: The reverse of melting is called __________.

Answer 14

freezing.

Question 15

What is sublimation?

Answer 15

The process of a solid turning directly into a gas.

Question 16

Multiple Choice: Which of the following transitions requires heat? A) Freezing B) Melting C) Condensation D) Solidification

Answer 16

B) Melting.

Question 17

What is the process called when a gas turns into a solid without becoming a liquid first?

Answer 17

Deposition.

Question 18

True or False: All materials can exist in all states of matter.

Answer 18

False.

Question 19

What is the effect of pressure on the states of matter?

Answer 19

Increasing pressure can change gas into liquid or solid.

Question 20

Fill in the blank: The temperature at which a liquid becomes a gas is called __________.

Answer 20

boiling point.

Question 21

Short answer: Name a common example of sublimation.

Answer 21

Dry ice turning into carbon dioxide gas.

Question 22

What is the primary difference between a liquid and a gas?

Answer 22

Liquids have a definite volume, while gases do not.

Question 23

True or False: In a liquid, particles are tightly packed and cannot move.

Answer 23

False.

Question 24

What happens to the energy of particles during condensation?

Answer 24

Energy is released.

Question 25

Multiple Choice: What is the process called when ice turns to water? A) Freezing B) Melting C) Evaporation D) Condensation

Answer 25

B) Melting.

Question 26

Fill in the blank: The change from liquid to solid is known as __________.

Answer 26

freezing.