This great rock tumbling kit comes with everything you need to polish stones and gems. Tumbling is easy: just place a few rocks or minerals into the tumbler with some grinding powder, and start tumbling! The grinding powder duplicates the erosion process that takes thousands of years in nature. It also comes with jewelry-making accessories to display the rocks, and is excellent as a birthday present or Christmas gift.
This 1mW, 532nm Super Safe Green Laser Pointer is for education, government or other settings where safety is a concern.
Create all kinds of marble run combinations with this 80-piece Marble Run set!
This science kit is an essential introduction to physics knowledge!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
This chemistry learning and experiment kit comes with components and chemicals for over 75 amazing experiments!
An ancient toy featuring optical illusion and hands-on fun that never grows old!