This is a standard DC power jack that can be mounted on a chassis for your next hobby electronics project. Measures 2.1mm.
This classic desk toy will keep you amused!
This science kit is an essential introduction to physics knowledge!
This kit includes several different projects that demonstrate the power of magnets!
Build your own windmill generator kit by recycling a plastic bottle!
This classic device is used to demonstrate the conservation of mechanical energy.
Use this cool Sea Monkeys zooquarium to teach your child how to take care of a pet!
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