Science Water

Question 1

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

Answer 1

Melting

Question 2

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

Answer 2

Vaporization

Question 3

True or False: Sublimation is the process where a solid turns directly into a gas.

Answer 3

True

Question 4

Fill in the blank: The temperature at which a solid becomes a liquid is called the _______.

Answer 4

melting point

Question 5

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

Answer 5

Freezing point

Question 6

What is condensation?

Answer 6

The process by which a gas turns into a liquid.

Question 7

What is the reverse process of melting?

Answer 7

Freezing

Question 8

Which state of matter has a definite shape and volume?

Answer 8

Solid

Question 9

Which state of matter has a definite volume but no definite shape?

Answer 9

Liquid

Question 10

Which state of matter has neither a definite shape nor a definite volume?

Answer 10

Gas

Question 11

What happens to the particles of a solid when it melts?

Answer 11

They gain energy and begin to move more freely.

Question 12

True or False: All substances have the same melting and boiling points.

Answer 12

False

Question 13

What is the boiling point of water at sea level?

Answer 13

100 degrees Celsius (212 degrees Fahrenheit)

Question 14

Fill in the blank: The process of a gas turning into a solid is called _______.

Answer 14

deposition

Question 15

What is the energy required to change a substance from solid to liquid called?

Answer 15

Heat of fusion

Question 16

What is the energy required to change a substance from liquid to gas called?

Answer 16

Heat of vaporization

Question 17

What is the term for the transition from gas to liquid?

Answer 17

Condensation

Question 18

What do we call the change from liquid to solid?

Answer 18

Freezing

Question 19

True or False: Evaporation occurs only at the boiling point of a liquid.

Answer 19

False

Question 20

Fill in the blank: The process of a solid turning into a gas without becoming a liquid first is called _______.

Answer 20

sublimation

Question 21

What are the three main states of matter?

Answer 21

Solid, liquid, gas

Question 22

What is the term for a mixture of solid and liquid where the solid is not dissolved?

Answer 22

Suspension

Question 23

What happens to the distance between particles when a solid is heated and melts?

Answer 23

The distance increases as the particles gain energy.

Question 24

Which process describes the transition from gas to solid?

Answer 24

Deposition

Question 25

What generally causes a change in state from solid to liquid?

Answer 25

An increase in temperature

Question 26

What is the primary factor that affects the boiling point of a liquid?

Answer 26

Pressure