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Worksheets

Physical and Chemical Changes

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Anything that has mass and occupies space.

a)

Math

b)

Matter

c)

Maternity

d)

Mate

2.

Chemical Composition can be classified as:

a)

substance and mixture

b)

pure mixture and substance

c)

pure and substance mixture

d)

pure substance and mixture

3.

Solid, Liquid and Gas are:

a)

Pure Substance

b)

Chemical State

c)

Physical State

d)

Elements

4.

Composed of only one (1) kind of atom and cannot be broken down into simpler pure substances by chemical means.

a)

Elementary

b)

Element

c)

Compound

d)

Complex-Compund

5.

Composed of two kinds of atoms combined in definite proportion and can be broken down into two (2) or simpler pure substances by chemical means.

a)

Element

b)

Compound

c)

Mixture

d)

Matter

6.

Physical combination between two or more pure substances, in varied proportions, in which each substance retains its own chemical identity.

a)

Pure Substance

b)

Element

c)

Compound

d)

Mixture

7.

A mixture that contains visibly different phases or parts, each of which has different properties and are distributed non-uniformly.

a)

Heterogeneous Mixture

b)

Homogeneous Mixture

8.

A mixture that contains only one visibly distinct phase, which has uniform properties throughout.

a)

Homogeneous Mixture

b)

Heterogeneous Mixture

9.

A mixture of two or more metals.

a)

Iron

b)

Alloy

c)

Mercury

d)

Sodium

10.

Its purest state, each molecule consists of two (2) thus the di-iodine atoms.

a)

Biatomic Molecule

b)

Diatomic Molecule

c)

Diatolic Molecule

d)

Monotomic Molecule

11.

Exists due to the differing electronegativities of the individual element within the molecule.

a)

Polarity

b)

Melting

c)

Freezing

d)

Evaporation

12.

Solid to Liquid

a)

Melting

b)

Freezing

c)

Evaporation

d)

Condensation

13.

Liquid to Solid

a)

Melting

b)

Freezing

c)

Condensation

d)

Deposition

14.

Liquid to Gas

a)

Melting

b)

Deposition

c)

Condensation

d)

Evaporation

15.

Gas to Liquid

a)

Condensation

b)

Sublimation

c)

Deposition

d)

Melting

16.

Solid to Gas

a)

Sublimation

b)

Deposition

c)

Melting

d)

Freezing

17.

Gas to Solid

a)

Deposition

b)

Sublimation

c)

Melting

d)

Freezing

18.

Milk

a)

Homogeneous Mixture

b)

Heterogeneous Mixture

19.

Rain

a)

Heterogeneous Mixture

b)

Homogeneous Mixture

20.

Salt and water

a)

Homogeneous Mixture

b)

Heterogeneous Mixture