Your junior scientist will love The Young Scientists SeriesSet 4. This set is a collection of 3 kits: Kit 10Bacteria and Fungi; Kit 11Weight and Volume, and Kit 12Acid and Bases. These kits make science fun. Your child can grow bacteria and fungi of all colors in Petri dishes and discover how antibiotics can cure disease. The journey continues with making and calibrating a scale, learning about density, and testing all kinds of substances with pH and litmus paper. Finish this set with some real copper plating.