Challenge your child's imagination with this 4M Salt Water Powered Robot Kit. Perfect for any young scientist, this fun kit teaches robotics and the value of alternative energy sources. Once assembled, this robotic racer is powered by the safe, non-toxic chemical reaction of salt water and charcoal. Fostering creativity and mechanical skill, this kit also provides an excellent opportunity to show kids how toys are assembled and function.
This set includes necessary components, accessories, and easy-to-follow instructions.
Requires one Phillips head screwdriver, cup, table salt, spoon, and adult supervision
Recommended for ages 9+yrs
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Spider robot Scuttles up and down its string like a real spider on silk thread. Scary! It cleverly changes direction at the top and bottom. Make this spindly spider robot with the included Body parts, motor and instructions. Requires two AAA batteries (not included).
Recommended for 8+yrs
Member's Price: $22.49
An invention of the captain of Darwin's HMS Beagle, this updated barometer responds to atmospheric fluctuations to forecast the weather. Crystals within the sealed glass chamber cluster or disperse with changes in air pressure or temperature. Add a little atmosphere to your home and daily routine.
Markings on glass indicate forecast
Glass capsule sets into a beech wood base
Mighty Magnet Set
Member's Price: $16.19
A perfect introduction to magnets, learn about North and South poles, explore magnetic items around the house and test the strength of magnets!
11-Piece Set includes: 2 large horseshoe magnets, 2 magnetic balls, 2 star magnets, 2 magnet rings, 2 "U" shaped magnets, and a magnetic wand
Choking hazard - not suitable for children under 3 years old
Member's Price: $17.96
by Amy Stewart
Sake began with a grain of rice. Scotch emerged from barley, tequila from agave, rum from sugarcane, bourbon from corn. Thirsty yet? In The Drunken Botanist, Amy Stewart explores the dizzying array of herbs, flowers, trees, fruits and fungi that humans have, through ingenuity, inspiration, and sheer desperation, contrived to transform into alcohol over the centuries.
Of all the extraordinary and obscure plants that have been fermented and distilled, a few are dangerous, some are downright bizarre, and one is as ancient as dinosaurs-but each represents a unique cultural contribution to our global drinking traditions and our history.
This fascinating concoction of biology, chemistry, history, etymology, and mixology-with more than fifty drink recipes and growing tips for gardeners-will make you the most popular guest at any cocktail party!
Member's Price: $31.49
Wonder at the beauty of science, colorful globes rise and fall according to the temperature. Metal tags tell both Celsius & Fahrenheit and glass globe rests securely on handsome Beechwood base.
Colorful globes rise and fall to determine temperature in Celsius and Fahrenheit
Measures 4.5" x 3.5"
Hoberman Mini Sphere
Member's Price: $22.49
Chuck Hoberman calls it a trapezoidal icosatetrahedron; a fascinating exercise in complex simplicity. The structure is rigid enough to roll and throw, yet if touched in the right way, it will suddenly collapse again, curling in on itself like a defensive hedgehog. An enclosed pamphlet describes various tricks you can do--if you're prepared to practice