What are asteroids and comets?
Where are they and how many are there?
Until recently, no-one really cared about asteroids. Why has this changed?
What is the Barringer crater?
Where are the dinosaurs?
Have a go at finding some more information using the search engines in the boxes below. Sweet Search and ipl2 both look for useful information for students on the internet.
Here are some ideas of keywords to search for, also try combining two words such as "impact asteroid" or "comet dinosaurs".
Try to find out more using Sweet Search, a search engine designed to help students find reliable information.
If you would like some more in depth information, try the following link: