wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Year 8 Science summer 2021

Total questions: 100

Worksheet time: 2hrs 38mins

Name
Class
Date
1.

A molecule is

a)

made up of two or more atoms that are chemically joined together

b)

one type of atom

c)

a group of compounds

d)

made of two different atoms chemically joined together

2.

What is the solute?

a)

The liquid that allows substances to dissolve

b)

The substances that dissolves

c)

A mixture made up of different substances

d)

Something that is made up of substances that are not chemically joined together

3.

Which type of reaction gives out energy to the surroundings

a)

Endothermic

b)

Displacement

c)

Oxidation

d)

Exothermic

4.

What happens during dissolving

a)

The solute and the solvent particles react and produce a new substance

b)

A mixture is formed between the solute and solvent

c)

The solute disappears

d)

The solute stays as a solid in the solvent

5.

What is an element

a)

one type of atom

b)

more than one type of atom that is chemically bonded together

c)

more than one type of element not bonded together

d)

one atom

6.

Which separation technique is shown below

a)

using a magnet

b)

separating funnel

c)

Centrifuging

d)

Chromatography

7.

Which state of matter can be compressed

a)

Plasma

b)

Solid

c)

Liquid

d)

Gas

8.

How many atoms are in this Chemical Formula CO2

a)

2

b)

3

c)

4

d)

1

9.
Particles of a liquid
a)
are tightly packed together and stay in a fixed position.
b)
have no viscosity.
c)
decrease in volume with increasing temperature.
d)
are free to move around one another but still touch.
10.

Which of the following is a common sign that a chemical change has occurred?

a)

A chemical has turned a different color, bubbled, and/or changed temperature.

b)

A chemical has changed to a different state of matter, such as a liquid to a solid.

c)

A chemical has changed size.

d)

A chemical has become a different shape.

11.
As particles are exposed to warmer temperatures they __________
a)
speed up
b)
slow down
c)
stay the same
d)
vibrate
12.

A mixture of water (b.p. 100oC) and alcohol (b.p. 78oC) is heated . Which will be found in 8 first?

a)

water

b)

ethanol

c)

it will still be a mixture

d)

it will be empty

13.

Which of the following is a physical change

a)

freezing

b)

neutralisation

c)

thermal decomposition

d)

burning wood

14.

Which of the following is a compound

a)

H2

b)

Cl

c)

CO2

d)

O2

15.

What word would scientists use to describe something that can dissolve

a)

soluble

b)

saturated

c)

solvent

d)

solute

16.

Which of the following processes involves a liquid turning into a gas at any temperature

a)

condensation

b)

boiling

c)

evaporation

d)

melting

17.

What is the pH of distilled water?

a)

pH 12

b)

pH 3

c)

pH 8

d)

pH 7

18.

Which pH levels indicated a strong acid?

a)

1-3

b)

4-6

c)

8-11

d)

12-14

19.

Which pH level indicates a strong alkali?

a)

1-3

b)

4-6

c)

8-11

d)

12-14

20.

What does this hazard symbol mean?

a)

toxic

b)

flammable

c)

corrosive

d)

explosive

21.

What colour is pH neutral?

a)

Yellow

b)

Orange

c)

Red

d)

Green

22.

Reaction between acid and alkali producing salt and water:

a)

Combustion

b)

Neutralization

c)

Precipitation

d)

Decomposition

23.

What is two or more substances that are together in the same place but their atoms are not chemically bonded.

a)

Mixture

b)

Solution

c)

Colloid

d)

Suspension

24.
the starting materials in a chemical reaction
a)
Products
b)
Reactants
c)
Starters
d)
Enders
25.
Which of the following is an example of a chemical change?
a)
rusting of a bicycle
b)
painting a house
c)
washing a dog
d)
tearing up a newspaper
26.
A chemical reaction that absorbs heat
a)
Single replacement
b)
Exothermic
c)
Endothermic
d)
Decomposition
27.

This picture represents which of the following?

a)

element

b)

compound

28.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
29.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
30.
Which box has a higher density?  
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
31.
What are the pollutants known to cause acid rain?
a)
nitrogen oxides and sulfur dioxide (sulfur compounds)
b)
Low pH and Acid
c)
Lemon Juice and Battery Acid
d)
Particulate Matter and Carbon Dioxide
32.
Global warming is due to 
a)
Greenhouse gases
b)
Nitric and sulfuric acids
c)
CFCs
d)
Ozone depletion
33.
What does this diagram illustrate?
a)
Ozone Layer
b)
The Greenhouse Effect
c)
Ultraviolet Radiation
d)
Layers of the atmosphere
34.

Which of the following is observed here?

a)

A physical change because you have the same types of atoms

b)

A physical change because you are just breaking the atoms up

c)

A chemical change because you are forming a new substance

d)

A chemical change because atoms are involved

35.

Which structures are found in plant cells, but NOT animal cells?

a)

Cell membrane, chloroplast, vacuole

b)

Cell wall, chloroplast, vacuole

c)

Nucleus, cytoplasm, chloroplast

d)

Mitochondria, chloroplast, nucleus

36.

What is the function of mitochondria?

a)

The powerhouse of the cell

b)

Transfers energy through respiration

c)

Makes energy

d)

Site of photosynthesis

37.
Diffusion is the movement of particles from an area of...
a)
High concentration to an area of low concentration.
b)
High concentration to an area of high concentration.
c)
Low concentration to an area of low concentration.
d)
Low concentration to an area of high concentration.
38.

During exercise for a long period of time, what happens?

a)

Heart rate increases

b)

Heart rate decreases

c)

Breathing rate decreases

d)

The muscle cells need less oxygen

39.

Select the animal that has a skeleton.

a)
b)
c)
d)
40.

The tiny air sacs at the end of the bronchioles where gas exchange occurs in the lungs.

a)

Trachea

b)

Bronchi

c)

Alveoli

d)

Diaphragm

41.

What are groups of similar body cells working together called?

a)

specialised cells

b)

tissues

c)

organs

d)

organ systems

42.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
43.

The main function of the circulatory system is

a)

To give the body structure and support

b)

Excrete waste

c)

transport blood, nutrients, and gases throughout the body

d)

to transport messages from the body to the brain

44.

What chamber of the heart is the arrow pointing to?

a)

Left atrium

b)

Right atrium

c)

Left ventricle

d)

Right ventricle

45.

Tube in the digestive system that carries swallowed food to the stomach.

a)

oesophagus

b)

trachea

c)

pancreas

d)

throat

46.
The highlighted organ is the
a)
liver
b)
large intestine
c)
small intestine
d)
stomach
47.

What is the correct sequence of structures from smallest to largest?

a)

Chromosomes, Gene, DNA, Nucleus, Cell

b)

Cell, Nucleus, Chromosomes, DNA, Genes

c)

DNA, Gene, Nucleus, Chromosome, Cell

d)

Gene, DNA, Chromosomes, Nucleus, Cell

e)

Gene Nucleus, DNA, Chromosome, Cell

48.

In which part of the digestive system are small food molecules absorbed into the blood stream?

a)

Stomach

b)

Liver

c)

Small intestine

d)

Large intestine

49.

Select the correct order from smallest to largest:

a)

Organelle - cell - tissue - organ - organ system - organism

b)

Cell - tissue - organelle - organ - organism - organ system

c)

Organelle - cell - organ - tissue - organ system - organism

d)

Cell - organ system - organelle - organ - organism - tissue

50.

What is number 2 pointing to in the diagram?

a)

cytoplasm

b)

cell membrane

c)

chloroplast

d)

cell wall

51.

What is the diagram showing?

a)

An organ

b)

A cell

c)

An organelle

d)

An organism

52.

Select the gametes:

a)

Egg cell and sperm cell

b)

Cell membrane and nucleus

c)

Heart and lung

d)

Nerve cell and red blood cell

53.

When organisms grow:

a)

Their cells get bigger

b)

The number of cells increases and cells get bigger

c)

The number of cells increases but they are all the same size

d)

The number of cells doesn't change

54.

Antibiotics treat what type of infection?

a)

Bacterial only

b)

Bacterial and Viral

c)

Fungal only

d)

Viral only

55.

An example of an inherited characteristic is:

a)

eye colour

b)

a tattoo

c)

a scar

d)

similarities in characteristics

56.

What are vertebrates?

a)

Animals with a backbone

b)

Animals without a backbone

c)

Animals that feed their young milk

d)

Animals that have organs

57.

My body is covered with hair or fur, I have live babies, and I feed my young with milk. What group of vertebrate am I?

a)

Bird

b)

Reptile

c)

Mammal

d)

Echinoderm

58.
One difference in gas exchange between fish and reptiles is that...
a)
Fish have lungs
b)
Reptiles have gills
c)
Fish can breathe through their skin
d)
Reptiles have lungs
59.

What group of vertebrates are born in water but lives on land as an adult?

a)

reptile

b)

mammal

c)

amphibian

d)

fish

60.

What is the term given to grouping organisms depending on their similarities?

a)

Classification

b)

Fertilisation

c)

Reproduction

d)

Digestion

61.

How many chromosomes are in human gametes?

a)

23

b)

46

c)

40

d)

20

62.

Which foods contains the most carbohydrates?

a)

Fish and chicken

b)

Pasta and bread

c)

Egg and cheese

d)

Carrot and broccoli

63.
Jerry wants to build up his muscles, which food group intake he should increase ? 
a)
Carbohydrates
b)
Fats
c)
Proteins
d)
vitamins
64.

This food (oil) belongs to which food group?

a)

Carbohydrate

b)

Protein

c)

Lipids (fat)

d)

Fibre

65.

Which of the following statements is true?

a)

A balanced diet should not include any fats as they are bad for you.

b)

Pasta and vegetables are enough to provide a balanced diet.

c)

A balanced diet must include carbohydrates, fats, proteins, minerals, vitamins, water and fibre.

d)

A balanced should only be made from fruit and vegetables.

66.

Pollination is:

a)

When pollen grains move from the anther of one flower to the stigma of another flower.

b)

When the gametes from two plants join together.

c)

When a seed starts to grow

d)

When a plant starts to grow in the summer

67.

A huge change in the physical characteristics of an organism from one life stage to the next.

a)

Metamorphosis

b)

Fertilisation

c)

Pollination

d)

Germination

68.

Named after the famous scientist, I am the unit for measuring Force

a)

Tesla

b)

Newton

c)

Neutron

d)

Sheldon

69.

Which of the following is a contact force?

a)

Magnetic

b)

Friction

c)

Electrical

d)

Gravitational

70.

Which of the forces in this image is the smallest?

a)

A

b)

B

c)

C

d)

D

e)

E

71.

Are the forces exerted by the cats balanced or unbalanced?

a)

Balanced

b)

Unbalanced

72.

In this force diagram, which way will the van move?

a)

Upward

b)

To the left

c)

To the right

d)

Downward

73.

In which force diagram would the car slow down?

a)

A

b)

B

c)

C

74.

I am a contact force that can only cause an object to slow down

a)

Thrust

b)

Friction

c)

Tension

d)

Magnetic

75.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
76.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
77.

When a skydiver is falling through the air, what is the name of the force acting upwards

a)

Gravity

b)

Air resistance

c)

upward force

d)

the moon

78.
If an object is luminous, that means it...
a)
Is brightly coloured
b)
Reflects light
c)
Gives off light
d)
Uses electricity
79.
Which of these is opaque?
a)
A frosted glass window
b)
A concrete wall
c)
A car windscreen
d)
Pure water
80.

Which of these objects is not luminous?

a)

The sun

b)

A star in the sky

c)

The moon

d)

A candle

81.

According to the Law of Reflection...

a)

the angle of incidence is equal to the angle of reflection

b)

the angle of incidence is greater then the angle of reflection

c)

the angle of incidence is smaller than the angle of reflection

d)

the angle of incidence is not equal to the angle of reflection

82.
How does light travel?
a)
in a wavy path
b)
in a straight path
c)
in a zig zag path
83.
__________ means to move back and forth quickly.
a)
Pitch
b)
Amplitude
c)
Vibration
d)
Echo
84.

A student placed an electric bell in a sealed jar and then removed the air from the jar using a vacuum. The expected result of this experiment would be:

a)

silence because vibrations cannot be transmitted to the jar through a vacuum.

b)

a lower pitched bell because sound absorbed by glass

c)

an increase in amplitude because sound travels better in glass

d)

an increase in amplitude because sound travels better in glass

85.

You will see a flash of lightning before you hear the thunder that goes with it because

a)

light travels faster through the atmosphere than sound

b)

thunder occurs much later than lightning

c)

the eye is quicker than the ear

d)

sound travels faster through the atmosphere than light

86.

Name the star in our solar system

a)

The Sun

b)

Rigel

c)

Vega

d)

Betelgeuse

87.

Name the fourth planet from the Sun

a)

Mercury

b)

Mars

c)

Venus

d)

Earth

88.

Name the closest planet to the Sun

a)

Mercury

b)

Mars

c)

Venus

d)

Earth

89.

What is a year?

a)

The time it takes a planet to orbit the Sun

b)

The time it takes the Earth to orbit the Sun

c)

The time it takes Earth to rotate once on it's axis

d)

The time it takes a planet to rotate once on it's axis

90.

What is a day?

a)

The time it takes a planet to orbit the Sun

b)

The time it takes the Earth to orbit the Sun

c)

The time it takes Earth to rotate once on it's axis

d)

The time it takes a planet to rotate once on it's axis

91.

Which switch or switches must be closed to make the lamps light?

a)

Neither

b)

Switch 1

c)

Switch 2

d)

Both 1 and 2

92.

Which of these materials is a good conductor of electricity?

a)

Rubber

b)

Metal

c)

Newspaper

d)

Glass

93.

The student conducted an experiment with circuits. Why was the bulb bright when he closed the switch?

a)

The switch produced an electric current

b)

Closing the switch broke the circuit

c)

Closing the switch completed the circuit

d)

The switch did not make a difference

94.

This is the symbol for a...

a)

Thermistor

b)

Bulb

c)

Fixed Resistor

d)

Ammeter

95.

This is the symbol for a...

a)

Bulb

b)

Voltmeter

c)

Ammeter

d)

Motor

96.

This is the symbol for a...

a)

Fuse

b)

Cell

c)

Fixed Resistor

d)

Variable Resistor

97.
The sun shines down on this family as the play on the beach.
a)
conduction
b)
convection
c)
radiation
98.
Walking on the warm sand sand with your bare feet.
a)
conduction
b)
convection
c)
radiation
99.
The candle will slowly heat the metal and transfer the heat directly to the mans hand.
a)
conduction
b)
convection
c)
radiation
100.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right

Similar Resources on Wayground

2nd Six Weeks Review

98 questions

2nd Six Weeks Review

quiz

Worksheet

•

6th - 8th Grade

IIT-JEE & NEET LEVEL-4 (7-T)

100 questions

IIT-JEE & NEET LEVEL-4 (7-T)

quiz

Worksheet

•

7th Grade

IIT-JEE & NEET LEVEL - 5 (7-O)

100 questions

IIT-JEE & NEET LEVEL - 5 (7-O)

quiz

Worksheet

•

7th Grade

Unit 1+2 Matter Exam Review (Intro)

97 questions

Unit 1+2 Matter Exam Review (Intro)

quiz

Worksheet

•

7th - 12th Grade

Science 7A Midterm Exam. Practice Quiz

105 questions

Science 7A Midterm Exam. Practice Quiz

quiz

Worksheet

•

7th Grade

Word Within The Word Lists 1-4

100 questions

Word Within The Word Lists 1-4

quiz

Worksheet

•

3rd Grade - University

20-21_PhySci_Semester 1 Final Exam

101 questions

20-21_PhySci_Semester 1 Final Exam

quiz

Worksheet

•

6th - 8th Grade

Chapter 3: Elements and the Periodic Table

96 questions

Chapter 3: Elements and the Periodic Table

quiz

Worksheet

•

5th - 8th Grade