Vicky Kimm visits the most northerly city in the world.
The tilt of the Earth's axis and the effect this has as Earth orbits the Sun.
A practical demonstration of how the Earth rotates on its axis to create day and night.
How an apple tree survives during the different seasons.
A sequence of time lapse images showing changing seasons in the countryside.
The Springwatch team look at data which shows the start of spring across the UK.
We have a selection of learner guides