Test Tube Hydroponics Grades K-8 (Kit) Investigate the importance of nutrients for plant growth and discover how plants grow without soil. Use this kit to grow and observe plants in a test tube hydroponic system. Kit includes rock wool, seed-starter trays, soybean... $52.00 Add to Cart Compare
Wind Power Grades 3-12 (Kit) Engage students with this engineering design challenge! Students will design and construct a barn, and create a wind turbine that produces electricity for the barn (lights up an LED light). This fun challenge is included in... $68.00 Add to Cart Compare
