Hot and Cold Jennings, Terry J. Explains essential facts about temperature, including how it is measured, its effects on weather, and its effects on states of matter. Includes experiments. CHF 39.90 In Warenkorb legen
Light and Dark Jennings, Terry J. Explains essential facts about light and dark, including natural and artificial light, color, and reflection. Includes experiments. CHF 39.90 In Warenkorb legen
Forces Jennings, Terry J. Explains essential facts about forces and movement, including gravity, friction, pressure, and simple machines. Includes experiments. CHF 43.90 In Warenkorb legen
