States of matter

Question 1

Compression

Answer 1

Compression, decrease in volume of any object or substance resulting from squeezing the object

Question 2

Melting

Answer 2

Solid changing to a liquid by heating

Question 3

Boiling

Answer 3

A liquid changing to a gas by heating it

Question 4

Evaporation

Answer 4

It’s the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature

Question 5

Condensation

Answer 5

Process in which a gas changes into a liquid by the process of cooling

Question 6

Freezing

Answer 6

Process of solidification. In other words when a liquid turns into a solid by the process of cooling

Question 7

Sublimation

Answer 7

Process in which when heating a solid turns to a gas without directly going through the liquid phase.

Question 8

Brownian Motion

Answer 8

The erratic movement of particles in a gas or liquid, as a result of continuous bombardment from molecules of the surrounding meduim.

Question 9

Difffusion

Answer 9

Movement of particles from a high to a low concentration .

Question 10

Intermoleculer Forces

Answer 10

Forces between molecules

Question 11

Melting Point

Answer 11

Temperature at which a solid turns to a liquid

Question 12

Boiling Point

Answer 12

Temperature at which a liquid turns to a gas

Question 13

Density

Answer 13

Density is the mass per unit volume

Question 14

Mass

Answer 14

Is the measurement of how many atoms a substance contains

Question 15

Vacuum

Answer 15

Space which contains no particles

Question 16

Reactants

Answer 16

Starting materials in a chemical reaction

Question 17

Products

Answer 17

The substances that are made in a chemical reaction

Question 18

Conservation of mass

Answer 18

The total mass of products at the end of the reaction is equal to the total mass of the reactants at the beginning. This is because no atoms are created or destroyed during chemical reactions.