IScience - Chapter 7 Vocab

Question 1

Matter

Answer 1

Anything that has mass and takes up space

Question 2

Atom

Answer 2

A small particle that is a building block of matter

Question 3

Substance

Answer 3

Matter with a composition that is always the same (Elements + Compounds)

Question 4

Element

Answer 4

A substance that consists of just one type of atom

Question 5

Compound

Answer 5

A type of substance containing atoms of two or more different elements CHEMICALLY bonded together

Question 6

Mixture

Answer 6

Matter that can vary in composition.

Combinations of two or more substances that are PHYSICALLY blended together

Question 7

Heterogeneous Mixture

Answer 7

A type of mixture in which the individual substances are NOT evenly mixed

Question 8

Homogeneous Mixture

Answer 8

A type of mixture in which the individual substances are evenly mixed

Question 9

Dissolve

Answer 9

To form a solution by mixing evenly

Question 10

Physical Property

Answer 10

A characteristic of matter that you can observe or measure without changing the identity of the matter

Question 11

Mass

Answer 11

The amount of matter in an object

Question 12

Density

Answer 12

The mass per unit volume of a substance

Question 13

Solubility

Answer 13

The ability of one substance to dissolve in another

Question 14

Physical Change

Answer 14

A change in size, shape, form, or state of matter in which the matter’s identity stays the same

Question 15

Chemical Property

Answer 15

A characteristic of matter that can be observed as it changes to a different type of matter

Question 16

Chemical Change

Answer 16

A change in matter in which the substances that make up the matter change into other substances with new physical and chemical properties

Question 17

Concentration

Answer 17

The amount of a substance in a certain volume