Which type of heavenly bodies in our Solar System is made up of hot gases that give out light?
Which is the closest star to the Earth?
Explain why astronauts are able to see the Earth from space although it does not give out light.
People in the past used to think that the Sun revolved round the Earth because they saw the Sun moving across the sky as day changes to night. From what you have learnt, explain what actually causes the Sun to rise and set every day.
What causes the cycle of day and night?
How long does it take for the Earth to make one revolution around the Sun?
What are Mars, Earth and Jupiter known as?
Venus, the second planet nearest to the Sun, is about the same size as the Earth. However, it does not support life. From what you have learnt about the Earth, give two possible reasons why Venus cannot support life.
The Moon is Earth’s natural _______________ .
Explain why the part of the Moon that faces away from the Sun cannot be seen.
What causes the phases of the Moon?
May Huan saw a full moon one night. Would she see a half moon or a crescent first after the full moon? Why?
A system is made up of smaller parts. What are the ‘parts’ that make up the Solar System?
In what way is the Earth different from the other ‘parts’ that make up the Solar System?
The live telecast of the ‘World Cup’ was made possible because of the use of _______________ satellite.