Paint Tempera, Color: Yellow, vibrant and washable, a twist on traditional tempera paints, wash from most clothing and surfaces, providing youngsters a greater opportunity to express themselves creatively, certified AP non-toxic, Size: 8 Ounces
Radiation set of three sources contains 1 each Po-210, Sr-90 and Co-60 emitting alpha, beta and gamma radiation's. Ideal for demonstration and nuclear labs covering basic characteristics of radiation. The Co-60 is 1 uCi and the Po-210 and Sr-90 are 0.1 uCi activity.