What is the main source of energy for the Earth?

Which planet is known as the 'Red Planet'?

What do plants need to make their own food?

What is the name for the tiny building blocks of matter?

What invention allowed people to communicate instantly across long distances?

Which of these is a renewable source of energy?

What is the force that pulls things towards the Earth?

What is the name of the device that doctors use to listen to your heartbeat?

Which gas do humans breathe in from the air?

What type of animal is a butterfly?