Great for checking levels of 3.7V Lithium cells. This is essentially a visual/graphical voltmeter, and allows you to keep tabs on energy usage, and to keep an accurate schedule for when to replace your lithium batteries.
Create currents and discover gravity while exploring the theory of Lenz's Law with this kit!
The cards show the name of the element, the atomic number, group, natural state and common usages!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
Learn Chemistry While Creating Sweet Treats
This 1mW, 532nm Super Safe Green Laser Pointer is for education, government or other settings where safety is a concern.
This great rock tumbling kit comes with everything you need to polish stones and gems!