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Year 8 Science

Total questions: 57

Worksheet time: 36mins

Name
Class
Date
1.

It refers to the space that matter occupies.

a)

volume

b)

mass

c)

weight

d)

density

2.

It is the amount of matter in an object.

a)

volume

b)

mass

c)

weight

d)

density

3.

Which of the following determines an object’s ability to float in water?

a)

volume

b)

mass

c)

weight

d)

density

4.

Matter is

a)

Anything that has volume

b)

Anything that has mass

c)

Anything that has mass and volume

5.

What state of matter does the picture below represent?

a)

solid

b)

liquid

c)

gas

d)

plasma

6.

What is a Solid?

a)

Matter that has a fixed shape and size.

b)

Matter that has a fixed size and no fixed shape

c)

Matter that has no fixed shape or size

d)

Matter that has no fixed shape and size

7.

The state of matter that keeps its shape and volume when it is placed in a different container is called ______.

a)

gas

b)

liquid

c)

solid

8.

The state of matter that expands to fill its container is called ______.

a)

gas

b)

liquid

c)

solid

9.

What is matter made up of?

a)

particles that are too large to be seen

b)

tiny butter particles

c)

particles that are too small to be seen

d)

tiny water particles

10.

Which state of matter has its own shape

a)

Gas

b)

Solid

c)

LIquid

11.

The diagram shows arrangement of particles in a

a)

Solid

b)

Liquid

c)

Gas

12.

Define a liquid.

a)

Matter that has fixed shape but no fixed volume

b)

Matter that has fixed shape and fixed volume

c)

Matter that has fixed volume, but no fixed shape

13.

The particles in the picture are tightly held together with very tiny movement. They have shape and fixed volume. Therefore, the picture represents _________.

a)

solid

b)

liquid

c)

gas

d)

plasma

14.

In which state of matter will there be the LARGEST space between molecules?

a)

Solid

b)

Liquid

c)

Gas

15.

The measure of how much space something takes up is ______.

a)

matter

b)

mass

c)

volume

d)

density

16.

What is a gas?

a)

Matter that has fixed shape but no fixed volume

b)

Matter that has no fixed shape and no fixed volume

c)

Matter that has no fixed shape but fixed volume

d)

compounds

17.

What state is represented in the gif?

a)

Solid

b)

Liquid

c)

Gas

18.
a)
Periods
b)
Groups
19.
a)
Periods
b)
Groups
20.
a)
Same group
b)
Same period
21.
How did Mendeleev arrange the elements?
a)
alphabetical 
b)
density
c)
melting point
d)
atomic mass
22.
The horizontal row on the periodic table is called a
a)
group
b)
family
c)
period
d)
atomic number
23.
A vertical column is called...
a)
group
b)
tower
c)
period
d)
crew
24.
The blue atoms are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
25.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
26.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
27.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
28.

How does acid tastes

a)

Sweet

b)

Bitter

c)

Salty

d)

Sour

29.

Which acid is present in orange

a)

Tartaric acid

b)

Malic acid

c)

Citric acid

d)

Acitic acid

30.

Which acid is present in your stomach

a)

Naoh

b)

Sulpher

c)

Hcl

d)

Salt

31.

How does base tastes

a)

Sour

b)

Salty

c)

Bitter

d)

Sweet

32.

If the soil is acidic what we should do to make it neutral

a)

Add salt

b)

Add acid

c)

Add base

d)

Add sugar

33.

Acid + base =

(a)  

34.

Which is a natural indicator

a)

Phenoptyalin

b)

Sulpher

c)

Litmus

d)

Naoh

35.

Which is not a natural indicator

a)

Litmus

b)

Turmeric

c)

China rose

d)

Phenoptyalin

36.

When acid is added to blue litmus paper the colour is

a)

Red

b)

Blue

c)

Green

d)

Yellow

37.

If the ph value is 5 what is the substance

a)

Acid

b)

Base

c)

Neutral

d)

Sweet

38.

Complete the following word equation:

Metal + Acid -->

a)

Salt + water

b)

Salt + hydrogen

c)

Salt + Water + Carbon dioxide

39.

Complete the following word equation:

Metalcarbonate + acid -->

a)

Salt + Hydrogen

b)

Salt + Water + Carbon Dioxide

c)

Salt + Water

40.

How do you remove the water to leave solid copper sulfate crystals?

a)

Filter

b)

Evaporate

c)

Distill

41.

What does the word insoluble mean?

a)

Does dissolve

b)

Doesn't dissolve

c)

Is part of a solid

42.

What type of reaction produced an insoluble salt?

a)

Neutralisation reaction

b)

Precipitation reaction

c)

Titration reaction

d)

Insoluble reaction

43.
Salts that are made with hydrochloric acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
44.
Salts that are made with sulfuric acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
45.
Salts that are made with nitric acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
46.
What salt is produced if you react sodium hydroxide with hydrochloric acid?
a)
sodium hydroxide
b)
sodium sulfate
c)
sodium nitrate
d)
sodium chloride
47.
A salt is formed when nitric acid combines with sodium hydroxide. What is the name of the salt?
a)
Sodium chloride
b)
Sodium nitrate
c)
Hydrogen Nitrate
d)
Nirate
48.
Identify the 'evaporating basin' from the diagrams.
a)
A
b)
B
c)
C
d)
D
49.

Which salt would be formed by reacting cobalt carbonate and hydrochloric acid?

a)

Cobalt sulfate

b)

Cobalt chloride

c)

Cobalt hydroxide

d)

Cobalt sulfide

50.

When a soluble salt is formed from an acid and an insoluble base, how do you know when an excess of a base has been added?

a)

When bubbles of gas appear

b)

When the reactant all dissolves

c)

When some of the reactant is left unreacted/undissolved

d)

When a colour change happens

51.

Why do you add excess of the insoluble reactant when making a soluble salt?

a)

To make sure all the acid is used up

b)

To separate the solid from the solution

c)

To make sure a reaction occurs

d)

To have the reaction happen faster

52.

How do you separate an excess insoluble reactant from a solution?

a)

Filtration

b)

Precipitation

c)

Crystalisation

d)

Evaporation

53.

Which two chemicals could you react to make only potassium chloride and water?

a)

Potassium and hydrochloric acid

b)

Potassium hydroxide and hydrochloric acid

c)

Potassium oxide and sulfuric acid

d)

Potassium and sulfuric acid

54.

When producing a soluble salt in a reaction between an acid and an alkali, how can you prepare dry solid crystals from the solution?

a)

Filtration

b)

Neutralisation

c)

Condensation

d)

Evaporation/crystallisation

55.

What is the symbol for Copper?

a)

C

b)

co

c)

Cu

d)

CU

56.

_________________ + nitric acid --> calcium nitrate + water

a)

calcium sulfate

b)

calcium oxide

c)

calcium carbonate

d)

calcium

57.

Crystallisation is used to separate ____ from a liquid.

a)

undissolved liquid

b)

dissolved liquid

c)

undissolved solid

d)

dissolved solid

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