Why is the Sun hot?

This question was asked by Betty in Birmingham, UK.  The simple answer to this question is that the Sun is…

Who was the first person?

This question was asked by Guy from York, UK.  This is a really interesting question because there are so many…

How does the Moon affect the tides?

This question was asked by Hannah from Devon, UK. Most people know that ocean tides are caused by the Moon,…

What causes the smell after rain?

There’s a particular smell in the air after rain has fallen on dry ground, a distinctive fresh sort of scent…