Petrified wood is a fossil formed when minerals infiltrate cavities between and within cells of natural wood. Usually infiltrated by silica or calcite, the replacement of the organic tissue with the minerals can be so precise that the internal structure as well as the external shape can still be very well-represented. The different minerals can give petrified wood a range of different colors. A beautiful specimen, this will be of enormous benefit for featuring a comprehensive rock collection in the science classroom, or for the rock collector in your family.
Please be aware that this is a natural mineral and as such each piece is one of a kind! The one you receive may not be exactly the same as the ones pictured but it will be similar. Price is per each piece.They come in irregular shapes, sizes and weights.
Warning: Choking hazard due to small parts. Not for children under 3 years old.
Durable, anti-fog safety glasses that fit comfortably on any head size.
Recommended for protection against chemical splashes. A must have for every young chemist!
Highly durable lab apron made of rubberized cloth is impermeable and easy to clean, perfect for all manner of lab or classroom experiments
Extra-small nitrile exam gloves designed and manufactured for superior protection against viral, bacterial, and certain chemical hazards.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
Explore the wonders of wind power with this amazing kit!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Get one of the craziest and coolest kaleidoscopes around!
The Ball of Whacks is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
This kit focuses on teaching children about electricity and how electronic devices work!
This microscope is so versatile you can even take it with you on a job site!
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