Why Does the Earth Have Tides?
The level of the sea rises and falls about 2 times each day. We call these changes tides. But what causes them?
Teresa Anderson
Occupation: Director of Jodrell Bank Discovery Centre
Year born: 1962
Research Areas: Electrical Engineering, Renewable Energy, Public Engagement
James Van Allen
Occupation: Space Scientist
Year born: 1914
Earth, Sun and Moon Quiz
The Earth is the planet you (and everyone else) live on! The Moon is a natural satellite of the Earth. This means it travels around our planet in a huge circle called an 'orbit'. The Sun is a star in the centre of our Solar System.