Earth and space · Sun, Moon and sky
Eclipses
If the Moon goes round Earth every month, why isn't there an eclipse every month?
5 depths
68 practice questions
Earth and space
Our planet, its oceans and skies, and the Sun and Moon that move them.
2 areas3 topics ready
Earth and space · area
Sun, Moon and sky
What we see in the sky, why it changes, and what is really moving.
2 / 2 ready
Earth and space · Sun, Moon and sky
Phases of the Moon
Why does the Moon change shape — and why is it never really a different shape at all?
5 depths
75 practice questions
Earth and space · area
Oceans
Seas, coasts and the daily rise and fall of the tide.
1 / 1 ready
Earth and space · Oceans
Tides
Why does the sea climb up the beach and slide back, twice a day, forever?
5 depths
71 practice questions