Year 4 LO9 - What is there out in space?

Although the Sun is bigger than the moon, from Earth they appear to be the same size. Why is this?

• The Sun is much more far away from Earth than the moon.

• The moon is made of rock.

• The Sun revolves around the Earth.

• You can see the moon only at night.

The Moon is made of rock and it does not have light of its own. However, it still shines at night. Why is this?

• The Moon reflects the light from the Sun.

• The Moon rotates very slowly.

• The Moon is covered with a thin layer of white dust.

• The Moon has many craters.

Is the following statement correct?

The Earth and the other planets orbit or move around the Sun.

• True

• False

Which of the following planets is closest to the Sun?

• Venus

• Jupiter

• Mercury

• Earth

Which scientist discovered that the sun was the centre of the solar system?

• Nicolaus Copernicus

• Albert Einstein

• Galileo Galilei

• Isaac Newton

Which one of the following celestial bodies is closer to the Earth?

• The Sun

• The Moon

• Neptune

• Saturn

The inner planets are closer to the sun. The outer planets are further from the sun. Which planet takes the longest to orbit the sun?

• Mars

• Neptune

• Saturn

• Jupiter

Which diagram describes best the movement of the planets around the Sun?

• 
• 
• 

Which best option from the ones below, completes the following statement?

As a planet’s distance from the Sun increases, the planet’s time to orbit the sun ____________________.

• increases

• decreases

• stays the same

Out of the following planets, which has the shortest year?

• Venus

• Earth

• Saturn

• Mars