States of Matter Vocab

Question 1

Vertical distance, or elevation, above sea level.

Answer 1

Altitude

Question 2

The basic unit of a chemical unit

Answer 2

Atom

Question 3

The temperature at which boiling occurs

Answer 3

Boiling point

Question 4

At sea level what is the boiling point of water?

Answer 4

100 C (212 F)

Question 5

Water boils at _ temperatures at _ altitudes because the air pressure is _ there.

Answer 5

Water boils at LOWER temperatures at HIGHER altitudes because the air pressure is LOWER there.

Question 6

To change from a gas to a liquid

Answer 6

Condense

Question 7

The basic unit of a chemical element when water is heated

Answer 7

Evaporate

Question 8

To change from a liquid to a solid

Answer 8

Freeze

Question 9

The temperature at which freezing occurs.

Answer 9

Freezing Point

Question 10

At sea level the FREEZING POINT of water is _.

Answer 10

0 C (32 F)

Question 11

A phase at which matter has no definite shape or volume.

Answer 11

Gas

Question 12

A gas can _ to _ any container.

Answer 12

A gas can EXPAND to FILL any container.

Question 13

A gas can be _.

Answer 13

Compressed.

Question 14

Molecules in a gas are relatively _ _ and move _ _.

Answer 14

Molecules in a gas are relatively far apart and move more freely.

Question 15

Water in a gas is called _.

Answer 15

Water vapor

Question 16

The basic unit of a chemical element. The resistance to the change in motion. (A _ substance is one that is not generally active)

Answer 16

Inert

Question 17

the basic unit of a chemical element. The energy of motion.

Answer 17

Kinetic Energy

Question 18

Anything that takes up space and has mass

Answer 18

Matter

Question 19

A phase in which matter has definite volume but no definite shape.

Answer 19

Liquid

Question 20

A Liquid _ _ _ _ of a container but CANNOT _ or be _.

Answer 20

A liquid takes up the shape of a container but CANNOT expand or be compressed

Question 21

Molecules in a liquid move _ but _ _ to one another

Answer 21

Molecules move randomly but stay close to one another.

Question 22

Change from a solid to a liquid

Answer 22

Melt

Question 23

The temperature at which melting occurs

Answer 23

Melting point

Question 24

At sea level the melting point is _.

Answer 24

0 C (32 F)

Question 25

A group of atoms bounded together

Answer 25

Molecule

Question 26

Displacement, speed, velocity, and acceleration if a particle.

Answer 26

Particle motion

Question 27

A state of matter with certain physical properties.

Answer 27

Phase

Question 28

_ _ _ occur naturally on Earth

Answer 28

Solid, liquid, and gas

Question 29

_ is a phase found in the stars

Answer 29

Plasma

Question 30

A transition of matter from one state to another

Answer 30

Phase change

Question 31

the amount of force exerted per unit area of a surface

Answer 31

Pressure

Question 32

A substance made of only one kind of matter

Answer 32

Pure substance

Question 33

type of matter that has a definite shape and volume

Answer 33

solid

Question 34

A solid will retain the same _ and a definite _ in any container.

Answer 34

A solid will retain the same shape and a definite volume in any container.

Question 35

Atoms in a solid are held in a _ structure and _ move freely

Answer 35

Atoms in a solid are held in a rigid structure and cannot move freely.

Question 36

Water in a solid phase is called _.

Answer 36

Ice

Question 37

A measure of how hot or cold something is

Answer 37

Temperature

Question 38

The total energy of motion in the particles of a substance

Answer 38

Thermal energy

Question 39

Gaseous state of a substance that is a liquid or a solid at room temperature

Answer 39

Vapor