*Activity title:

Calculate the size of an asteroid

*Keywords: (list any words which you think Asteroids, Observing, Measurement, Data analysis. relate to the subject, goals or audience of your activity) *Age range: (choose all age categories this activity applies to)

H 16-19 I 19+

*Education level: (choose one or more educational level for your activity)

D Secondary E University

*Time: (how long does the activity take?)

F 2hrs in 3 steps

*Group size: Group *Supervised for safety: (does the activity have No steps which need adult supervision for safety?) *Cost: (rough cost of any materials needed for Low (