Teach your toddler how to express creativity, follow directions, and work together with friends as they fill and form a variety of colorful, bouncy playthings. The next instructions were to add some water, and immerse the mould (which has some holes) in water. The molding tray is equipped with five unique casts that form this peculiar putty into silly shapes that give your bouncy balls minds of their own.

The polyvinyl alcohol (PVA) is a polymer made of lots of repeating units of carbon, hydrogen and oxygen. Refill kits are sold separately, and contain enough polymer crystals to make 12 more super bouncing balls. This Crystalverse Kiki Mini Kit introduces a cool, cosmic character, perfect for creative kids with big imaginations! The instructions didn't say to do this, but there looked to be some fairly large gaps which I feared would mean the ball didn't hold together well.Everything You Need Is In The Kit: our bounce ball kit provides 12 cups with all the necessary crystal powders, molds, and instructions to make your own ball!

A mixture of up to five colours can be poured into one of the three supplied moulds (one large, spherical design and two small, irregularly shaped ones), immersed in water, and then split open after four minutes to reveal a superbly bouncy creation. The mould was easy to open, but one half stuck in to the extent that it seemed the ball would break rather than it coming out, and I had to get a knife to assist it. Then spend time with them while the balls wizz around your living room narrowly avoiding your precious ornaments and pets.

All you have to do is layer up the crystals and place the casing into water for a few minutes to let your ball set. You provide the water and in just a few minutes, your students will be able to use their creations to conduct a wide range of investigations. So, this was a welcomed change and as he wanted me to do this activity with him it gave us a chance to spend some time together. This bouncy ball making kit has 10 sachets of granules in 5 different colours giving you enough to make 4 to 10 bouncy balls depending on the sizes you choose. Have Fun 100% Worry-Free: our bouncy balls kit is made using high-quality, kid-safe, and non-toxic materials.