What is a Geode?
Geodes are formed from fluids which crystallize in cavities within a rounded rock or nodule. Geodes are found in many parts of the world. The geodes contained in this set are from Mexico; 90% of them have hollow centers lined with crystals. Break open yours and look for the hidden crystals!
How to Break Open Your Geodes
Put the geode in a bag or sock. Hit it firmly with a hammer, aiming for the center - safety glasses and adult supervision are recommended.
Easily assemble a working alarm motion detector!
Comprehensive collection of 30 fossils.
Experience this sphere powered by the sun!
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
A massive mounted set of 100 rocks and minerals found in the US,
The large realistic model has removable organs that can be studied and set back into the correct position.
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.