Get acquainted with one of the most interesting products of geological processes with this introductory collection of real specimens of sedimentary rock. Sedimentary rocks are formed from preexisting rocks through the processes of erosion, followed by compaction or chemical precipitation; examples include sandstone, limestone, and coal. The Sedimentary Rock Bag is an economy collection of 6 specimens representative of the sedimentary rock family. Each generous specimen is 1.25" to 1.5" and is contained in a zip lock bag with a label.
This black scorpion specimen is great for the classroom setting!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
Great reference card for chemistry and physics students.
This classic device is used to demonstrate the conservation of mechanical energy.
The large realistic model has removable organs that can be studied and set back into the correct position.
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.