Science Revision

Match the following

• the measure of the force of gravity

• Gravity

• a pulling force exerted by the Earth

• Mass

• a measure of how much matter is inside a

• Forces

• pushes or pulls

• Weight

Match the following

• an upward force that a liquid applies

• Air resistance

• a force that acts between two surfaces

• Buoyancy

• a type of friction caused by water

• Water resistance

• a type of friction caused by air pushing

• Friction

Label the mechanisms

a

b

c

Friction

Lever

Crane

Gear

Pulley

Label the name of the force in action next to each arrow.

a

b

c

d

Gravity

Water resistance

Air resistance

Magnetism

Fill in the gaps

a

b

c

ground

centre

object

human

mass

star

What is the name of the scientist who developed a theory of gravity when he saw an apple fall to friction the ground?

• Albert Einstein

• Galileo Galilei

• Sir Isaac Newton

• Edwin Hubble

Select the object that would fall the fastest in water

Select true or false for each statement

Complete the gaps

a

b

c

d

carnivore

insect

bird

mammal

amphibian

Put a circle around all the materials that will dissolve in water