Science Ch 15 Voc

Question 1

A type of matter with a fixed composition

Answer 1

Substance

Question 2

All the atoms in a substance have the same identity

Answer 2

Element

Question 3

A substance in which the atoms of two or more elements are combined in a fixed proportion

Answer 3

Compound

Question 4

A mixture in which different materials can be distinguished easily

Answer 4

Heterogeneous mixture

Question 5

Contains two or more gases, liquid or solid substances blended evenly throughout

Answer 5

Homogeneous mixture

Question 6

A homogenous mixture of particles so small that they cannot be seen with a microscope and will never settle to the bottom of their container

Answer 6

Solution

Question 7

A type of mixture with particles that are larger than those in solutions but not heavy enough to settle out

Answer 7

Colloid

Question 8

This scattering of light by colloidal of particles

Answer 8

Tyndall effect

Question 9

A heterogenous mixture contains a liquid in which visible particles settle

Answer 9

Suspension

Question 10

Any characteristic of a material that you can observe

Answer 10

Physical property

Question 11

A change in size, shape, or state of matter

Answer 11

Physical change

Question 12

The process for something separating substances in a mixture by evaporating a liquid and recondensing its vapor

Answer 12

Distillation

Question 13

A characteristic of a substance that indicates whether it can undergo a certain chemical change

Answer 13

Chemical property

Question 14

A change of one substance to another

Answer 14

Chemical change

Question 15

The mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change

Answer 15

Law of Conservation of Mass