03005 Features: -Solar energy/all about rocks combo pack. -Complete lab with solar collector, solar heater, energy focusing lens, thermometer and more than 25 energy conservation experiments. -Harness the power of the sun. -Collect and measure energy using a variety of solar tools. -Start your own rock collection and grow beautiful crystals. -Learn about and experiment with eight different types of rock. -Learn how to smash the toughest rock in the world. -Assembly required.
ترست بايلوت
منذ شهر
منذ شهرين
