The Solar system

The Earth completes one rotation about its axis every ___________. This period is known as a day.

• 24 hours

• 28 days

• 365.25 days

The number of hours in a day is different on other planets. This is because each planet . . .

• rotates about its axis at a different speed.

• orbits the Sun at a different speed.

Venus has the longest day length because it rotates about its axis most __________.

• quickly

• slowly

Which two of these planets have days that are longer than the Earth's?

• Venus

• Jupiter

• Mercury

• Saturn

A planet's _________ is the almost-circular path that it takes around a star.

• rotation

• orbit

Which two of these planets have a shorter year than Earth?

• Venus

• Mars

• Mercury

• Jupiter

The further away from the Sun a planet is, the _________ the length of its year.

• longer

• shorter

The UK is in the northern hemisphere. When the northern hemisphere is tilted towards the Sun, it is __________ in the UK.

• spring

• winter

• summer

• autumn

True or false? The Sun is a star.

• true

• false

What name is given to the Sun and all of the objects that orbit the Sun?

• the solar system

• the Milky Way

• Andromeda