Ireland Junior Cycle

You have likely heard about the Universe expanding. Or that redshift can tell us about the movements of galaxies. Both are difficult ideas to imagine and understand.

The Moon is the brightest object in the night sky when its whole face is showing. This only happens at full Moon. So why isn't it always a full Moon? 

Ever wondered how heavy or light you would feel on another planet in our Solar System?

The level of the sea rises and falls about 2 times each day. We call these changes tides. But what causes them?

Is gravity the same everywhere? Experiment with how the ball reacts in each of the Solar System locations by dropping or throwing the ball. How similar or different is each location to Earth?

Every year, the Earth completes one orbit of the Sun and every year, you have a birthday!