Apple Land Use Model Imagine the Earth as an apple. Use this large, 18"X 18" apple model to demonstrate the distribution of the Earth's water and land resources. The model is two layers of durable styrene board with a handle on the back of the bottom layer. The top layer is... $155.00 Add to Cart Compare
Classroom Aquaponics Investigate the basic needs of plants and fish and discover how plants, animals, and bacteria interact in a symbiotic system by assembling, maintaining, and observing a small-scale aquaponics system. Assembly required! Materials ... $186.00 Add to Cart Compare
