A low cost pulley for simple machines experiments which can be clamped to a table.
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Comprehensive collection of 30 fossils.
This magic bird defies gravity before your very eyes!
Learn how solar cells transform light into electrical energy with this great kit!
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
This chemistry learning and experiment kit comes with components and chemicals for over 75 amazing experiments!
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