Shoutbox

Carry out simple experiments on photosynthesis?

Cover some leaves on a tree with a plastic bag and see if after a few days there is water in the bag from the paws on the tree? See how much different tree's produce?

Crystalisation of salt and water?

Adding colour dye to a glass of water then leaving a piece of cellery in it over night?

Measure the electrical resistance of different objects? (types of metal)

There are lots of things you could do!