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SCI-8

Total questions: 25

Worksheet time: 19mins

Name
Class
Date
1.

What are the three phases of matter?

a)

solid,liquid and plasma

b)

solid,liquid and gas

c)

solid,liquid,matter

d)

matter,solid,gas

2.

Anything that occupies space and has mass is______.

a)

gravity

b)

matter

c)

density

d)

mass

3.

the temperature at which the liquid substance turns to solid is called _______.

a)

evaporation

b)

melting point

c)

condensation

d)

freezing point

4.

When the particles lose their kinetic energy and become closer to each other, the process is _____.

a)

melting

b)

freezing

c)

condensation

d)

evaporation

5.

It allows the particles to move more and to have more space that will change them to liquid, the process is ______.

a)

melting

b)

condensation

c)

freezing

d)

evaporation

6.

it is a process in which a liquid turns to gas.

a)

evaporation

b)

melting

c)

freezing

d)

boiling

7.

it is the central study of chemistry.

a)

math

b)

physics

c)

matter

d)

science

8.

mass and volume are example of _______.

a)

intensive properties

b)

extensive properties

c)

matter

d)

gravity

9.

Are those that are observed physically about the substance at its natural state.

a)

extensive properties

b)

intensive properties

c)

physical properties

d)

physical change

10.

A matter that do not depend on the amount of matter that the substance has.

a)

physical change

b)

extensive properties

c)

physical properties

d)

intensive properties

11.

It is the compactness of matter-

a)

density

b)

mass

c)

gravity

d)

volume

12.

the process in which only the phase of the substance changes, not its identity is called ______.

a)

physical change

b)

chemical change

c)

mass

d)

matter

13.

Color,density, and freezing and boiling points are examples of ________.

a)

Extensive properties

b)

intensive properties

c)

freezing point

d)

melting

14.

He proposed the law of definite proportion.

a)

William Proust

b)

Michael Proust

c)

Joseph Proust

d)

Dina Proust

15.

The fundamental substances that cannot be broken down into other substances through chemical methods is _____.

a)

compounds

b)

mixtures

c)

elements

d)

solutions

16.

A pure substance that is formed when atoms of two or more elements are bonded chemically.

a)

elements

b)

mixtures

c)

compound

d)

colloids

17.

Are substances whose colors are affected by acids and bases

a)

indicators

b)

mixtures

c)

suspension

d)

magnetic separation

18.

Physical combinations of two or more pure substances in which the individual identities of the substances are not altered.

a)

salts

b)

compound

c)

elements

d)

mixtures

19.

a type of mixtures that is not uniformly mixed is called _____.

a)

homogeneous mixtures

b)

heterogeneous mixtures

c)

distillation

d)

filtration

20.

The mixtures that appears as one uniform phase of matter is called _____.

a)

filtration

b)

heterogeneous

c)

homogenous

d)

magnetic separation

21.

What are the three types of mixtures?

a)

salt,acid and bases

b)

solution,colloid and suspension

c)

soli,liquid and gas

d)

compound,element and indicators

22.

Solution is under ______.

a)

homogeneous

b)

heterogenrous

c)

suspension

d)

colloid

23.

Hydrogen + Oxygen=

a)

H2O

b)

H10

c)

HO

d)

HO2

24.

Sodium + Chlorine=

a)

NACL

b)

NaCl

c)

nAcL

d)

nacl

25.

Nitrogen+Hydrogen=

a)

NH3

b)

Nh3

c)

nh3

d)

nH3