The National Geographic Explorer Science Series Sensory Science Kit is a one-stop science pack with awesome slimes, putty, and play sand. This science set includes one pound of natural play sand, 6 sand molds and a convenient play tray. It won't dry out, meaning theres no end to the amount of imaginative fun you can have. Hydrophobic sand comes in the kit too, and its an incredible sand to conduct experiments with since it never gets wet, the snotty slime and liquid slime come pre-made, so are ready to play right out of the box. A one-stop science pack with awesome slimes, putty, and play sand Includes 2 sand kits, two slime kits and a colour changing putty. Easy-to-follow instructions also include several slime recipes you can make at home with common household items. The detailed learning guide provides insight into the science at work in the kit. The Sensory Science Kit is great for families that like to play together Includes 1 x Play Sand Kit, 1 x Hydrophobic Sand Kit, 1