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Chapter 7 Glossary - Physical and Chemical Change

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

A change of state where a liquid is heated and changes to a gas within the liquid

a)

Boiling

b)

Condensation

c)

Melting

d)

Evaporation

2.

The chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the Sun

a)

Crystallisation

b)

Respiration

c)

Plant Synthesis

d)

Photosynthesis

3.

Contraction is

a)

an increase in size

b)

a decrease in size

c)

a change of state

d)

the process of diffusion

4.

Expansion is

a)

An increase in size

b)

a decrease in size

c)

a change of state

d)

the process of diffusion

5.

The substance found in plant leaves that makes leaves green and collects energy from the sun for photosynthesis

a)

Chloroplast

b)

Chlorophyll

c)

Green pigment

d)

Green leaf

6.

Any chemical reaction where a substance burns in oxygen to produce light and heat

a)

Corrosion

b)

Combustion

c)

Crystillisation

d)

Chloroplast

7.

Evaporation of a solvent from a solution, leaving solute behind as crystals

a)

Corrosion

b)

Combustion

c)

Crystallisation

d)

Chlorophyll

8.

A solid formed during a chemical change

a)

Glucose

b)

Ice

c)

Solution

d)

Precipitate

9.

The change of state from gas to solid

a)

Sublimation

b)

Evaporation

c)

Freezing

d)

Deposition

10.

A change of state where a liquid changes to a gas at the surface of their particles

a)

Condensation

b)

Melting

c)

Freezing

d)

Evaporation

11.

Freezing is the change of state from

a)

gas to solid

b)

liquid to solid

c)

solid to liquid

d)

solid to gas

12.

The chemical property of a substance that describes how easily the substance undergoes combustion

a)

Fire

b)

Explosion

c)

Flammability

d)

Hazardous

13.

A change of state where a gas is cooled and forms a liquid

a)

Evaporation

b)

Condensation

c)

Freezing

d)

Sublimation

14.

A substance dissolved in another substance to form a solution

a)

Solute

b)

Solvent

c)

Aqueous

15.

A substance (usually a liquid) that dissolves another substance to form a solution

a)

Solvent

b)

Solute

c)

Aqueous

16.

Melting is a change of state from

a)

Solid to gas

b)

Solid to liquid

c)

Liquid to solid

d)

Gas to solid

17.

Sublimation is a change of state from

a)

Gas to solid

b)

Solid to gas

c)

Liquid to Solid

d)

Liquid to gas

18.

In this reaction, oxygen and glucose are converted into water and carbon dioxide while releasing energy.

a)

Photosynthesis

b)

Respiration

c)

Mitochondria

d)

Chloroplast

19.

The substances formed in chemical reactions after the arrow in a word equation

a)

Reactions

b)

Produce

c)

Products

d)

Reactants

20.

The substances starting in chemical reactions before the arrow in word equations

a)

Reactions

b)

Products

c)

Reactants

d)

Produce

21.

The characteristics of substances that determine how they react chemically with other substances

a)

Chemical properties

b)

Chemical change

c)

Physical properties

d)

Physical change

22.

The change that does not result in a new substance being produced

a)

Chemical change

b)

Physical change

c)

Physical property

d)

Chemical property

23.

The characteristic of a substance that describe how it looks, feels, smells and responds to external forces.

a)

Chemical property

b)

Chemical change

c)

Physical change

d)

Physical property

24.

A change that results in a new substance being formed

a)

Chemical change

b)

Physical property

c)

Chemical property

d)

Physical change

25.

A form of sugar that is produced during photosynthesis and used in respiration to produce energy

a)

Glycogen

b)

Glucose

c)

Lipids

d)

Protein