The Be Amazing Lab-in-a-Bag Test Tube Wonders comes with 15 great activities in one little bag. You can learn the secret of the giant test tube; make up a pile of insta-snow; build under-water castles with water-proof sand; Use the sun to make white beads instantly change colors; grow a test tube dinosaur. Also, learn how to make water disappear. Make squishy jelly crystals, color them and make your own Rainbow Tube all in one bag of fun and science.