There are plenty of online resources about teeth, explaining the different types of teeth and how they differ between animals. We found the Children's University of Manchester section on Teeth and Eating and the BBC Teach videos particularly useful, although the Weird Animal Teeth video was probably most interesting:
We laminated three pictures of teeth, drew little germs and bacteria on them, and then the three children had to brush them clean as quickly as possible with very cheap toothbrushes from the supermarket.
|A laminated mouth|
For the egg experiment, one egg was left in a pint of vinegar over night, and another in a pint of water for comparison purposes.
|Eggs in vinegar and water|
Next week's project: Trains!
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