This short activity introduces students to the ideas of the footprint and resolution of an image, asking them to choose and use appropriate methods to calculate how these quantities would change as they moved a camera to a series of vantage points above the surface of the Earth

In this activity students take on the role of Earth observation scientists submitting a request for an image they would like for their research. This gives them the opportunity to consider the possibilities of pictures taken from orbit (and the limitations) and to write scientifically for a specific audience. It...

Measuring the diameter of our star This simple exercise allows students to measure the diameter of the Sun using a metre rule and two pieces of card. An image of the Sun needs to be projected on the card using a small hole in one piece of card.

Measuring the number of hours in a day...