150 个富有挑战性的实验。转换太阳能,制作太阳能发电器、马达、
水加热器、熔炉、温度计、起重机和太阳能手机。
Solar energy is clean,safe and easy to find, 150 challenging experiments. Convert solar energy, make solar power generators, motors, water heaters, furnaces, thermometers, cranes and solar mobile phones. Let the children enjoy the experiment process and learn about solar energy.