Lumpy Solution
Can you find the best way to break up the lumps into a fine powder?
Investigating
The lumpy ingredient is quite expensive, so it would be best to try using a cheaper alternative first to see if the idea works. Pieces of chalk have a similar hardness to the lumps of sun protection ingredient.
You will need to think about things like:
- what material should you try shaking the lumps with?
- how much of this should you use?
- how long will you shake it for?
Activity: You can work on the problem by trying Activity 8
After you've done it, come back and see how the scientists have solved this problem