Grow carrots in a 2 litre bottle
A volcano in a mug. Much more accurate than the baking soda/vinegar idea.
30 ways to work with shadows
Water Works Science
Make crystal egg geodes from egg shells- fun Science!
make a weather station
Make baked marbles. Fun Science with a beautiful final result
I can't believe we haven't tried Elephant Toothpaste yet
Fun water play experiments for kids
Ice Tunnel Science- FUN!