The different effects of gravity on Earth compared to Jupiter or Pluto.
The evidence for the Earth being round or spherical using Aristotle's reasoning.
A look at the evidence for the Earth being round or spherical.
How you can tell the time of day from shadows cast by the sun.
Why and how the shape of the Moon appears to change when seen from the Earth.
A quick guide to Jupiter, the largest planet in our solar system.
A quick guide to the planet Neptune, which is composed mainly of water.
A quick guide to the planet Uranus, the seventh planet from the sun.
A quick guide to Venus, the brightest planet in the sky.
We have a selection of learner guides