Revision Grade 3

1.Arun and Zara are going to model the Earth and Moon.

Which of these objects would be best to use for the Earth?

Which would be best for the Moon?

• The football

• The tennis ball

• The book

• The plate

2. A globe is a model of the Earth.

Why do we use models in science?

• To play with

• To give us pictures

• To represent the size of something

• Because models make science interesting

3. When the light side of the Moon is getting bigger, we say the Moon

is ...............

• even more bigger

• Waning

• Waxing

• smaller

4. When the Moon is closer to the Sun than Earth, we see only

a little of the light side and lots of the dark side. This phase

is called a ............. moon

• Waxing

• Waning

• Gibbous

• Crescent

5. The Moon is a large sphere of rock that is moving slowly in

a circle around the Earth. We call this circle the Moon’s .......

• orbit

• asteroids

• path

• circle

6. Why is the Moon, the sun and the earth all spheres?

• Because they have so many stuff on them

• Because of Gravity

• Because they need to move around

• Because they are all spherical

7. Which of these materials are magnetic?

• Lead

  Gold

• Aluminium

  Chrome

• Steel

  Copper

• Silver

  Copper

8. On a magnet when two poles are the same they ..........

• become red

• repel

• become blue

• attract

9. Magnets can push and pull. This force is

called .........

• pull

• attract

• magnetism

• repel

10. The standard unit of force is the (N)

• New unit

• Volts

• Gravity

• Newton