The Crazy Scientist Science Cards offer 20 thrilling science experiments that can be done using items found in the kitchen. These experiments include making a green sunny side-up egg and a balloon that can withstand being punctured by a skewer. Each set comes with 20 glossy cards that include a list of materials, easy-to-follow instructions, explanations, and lively illustrations. The cards are 3¼" x 5" and can be kept in a sturdy tin. These science cards are appropriate for children ages 6 and up.