Selling ScienceWiz kits, $10 each or $30 for all four. Used and in fair condition. Great activity to teach science to kids through fun experiments.
The four kits available are:
1. Inventions - Understand the "why" as well as the "how" of the workings of a spinning motor and a clicking telegraph. Children will also learn about a light flashing generator and a real working radio.
2. Energy - Discover what energy is, how we make it in the present and what choices await us in the future. Learn about global warming, build a solar car, etc.
3. Physics - Develop a fundamental understanding of inertia, the laws of motion, centripetal force, mass, weight, velocity and acceleration. Concepts are explored with time-tested experiments and highly visual illustrations.
4. Chemistry+ - This selection of experiments includes growing huge crystals, splitting water into rocket fuel, popping hydrogen, using pH sticks to rank acidity, flame testing salts, etc.