Kit, The state of Earths atmosphere affects us all, which explains why the weather is one of the most popular topics of conversation and scientific study. With 23 hands-on experiments, Full-color, 48-page manual.
Combination 2. 2 m Track and Optics Bench, black anodized aluminum and includes a metric scale. Extremely rigid, this 2. 2 meter track will not sag under use, The track includes 2 Adjustable Two Foot Levelers.