Musical egg shaker teaches kids about sound through percussion. Squishy putty and Kinetic sand give kids lots of touch sensory play. Special smell vials let kids set up their own odor experiment. Invisible ink pen with built-in UV light lets kids write secret messages then decode them! Paper construction toys but kids building skills to the test! Manufacturered by Know Yourself. Packed with simple science experiments and activities for children age 8-12. Plus slime recipes a supertaster test and stickers for more science fun. Know yourselfs individual science experiment and craft kits are perfect for homeschooling after school and vacation learning. Hours of fun steam learning for girls and boys! Steam learning science technology engineering arts math science Supplement your child's education with this cool STEM project kit focused on human anatomy and the five senses: sound sight taste touch and smell. Learn human biology at home!