Young Scientist Series - Set 4: Bacteria and Fungi (Kit 10) - Weight and Volume (Kit 11) - Acids and Bases (Kit 12) Educational and fun for kids Great hands on learning kit Encourages creative learning Kit has everything you need Grow, measure, and mix 3 complete kits in one box Mulitple award-winning science kits that make science fun, educational, and hands-on All kits are put on the market after it has passed the ulitmate test-approval by multiple teams of Young Scientists Discover how antibiotics can cure disease. Young scientists make and calibrate a scale, learn about density, and test all kinds of substances with pH and litmus paper. Finish this set with some real copper plating!