States of Matter

Question 1

Solid

Answer 1

Definite shape, definite volume, particles vibrate in place.

Question 2

liquid

Answer 2

Particles slide past each other, definite volume, takes shape of container.

Question 3

Gas

Answer 3

Particles break away completely from each other, particles move independently of one another, takes shape of container, compressible.

Question 4

Plasma

Answer 4

Does not have a definite shape or volume, conducts electric current, admits light.

Question 5

Physical property

Answer 5

Matter can be observed or measured without changing the identity of the matter.

Question 6

Physical property examples

Answer 6

Color, state, odor, volume, mass.

Question 7

Physical change

Answer 7

Change that affects one or more physical properties. It still maintains its original self.

Question 8

Physical change examples

Answer 8

Breaking chalk, freezing water, cutting your hair.

Question 9

Chemical property

Answer 9

Describe a substance based on its ability to change into a new substance with different properties.

Question 10

Chemical property examples

Answer 10

Flammable, reacts with oxygen.

Question 11

Chemical change

Answer 11

Occurs when one or more substances are changed into entirely new substances with different properties. (Can’t put back together with fingers.)

Question 12

Chemical change examples

Answer 12

Baking a cake, soured milk.

Question 13

Clues for chemical change

Answer 13

Color change, fizzing/foaming, heat, production of sound, light, new odor.

Question 14

Element

Answer 14

A pure substance that cannot be separated into simpler substances by physical means.

Question 15

Compound

Answer 15

A pure substance composed of 2 or more substances that are chemically combined.

Question 16

Mixture

Answer 16

A compound of 2 or more substances that are not chemically combined.

Question 17

Similarities between compounds and mixtures.

Answer 17

Both are made up of 2 or more materials, but compounds cannot be separated by physical means and a mixture can.

Question 18

Similarities between elements and compounds.

Answer 18

Both cannot be separated by physical means, but a compound is made of 2 or more materials, and an element is not.

Question 19

Change of state

Answer 19

The conversion of a substance from one physical form to another.

Question 20

Melting point

Answer 20

The temperature at which the substance changes from a solid to a liquid. (32 degrees fahrenheit, 0 degrees celsius.)

Question 21

Freezing point

Answer 21

The temperature at which changes a liquid into a solid.

Question 22

Boiling point

Answer 22

The temperature at which a liquid boils. (212 degrees fahrenheit, 100 degrees celsius.)

Question 23

Condensation point

Answer 23

The state changes at which a gas becomes a liquid.

Question 24

Condensation

Answer 24

Change of state from gas to a liquid.

Question 25

Condensation example

Answer 25

Mirror.

Question 26

Sublimation

Answer 26

Change of state from a solid directly to a gas.

Question 27

Sublimation example

Answer 27

Dry ice.