This 3" x 2" double-sided mirror is made from flexible acrylic plastic. It can be easily cut with scissors, and can be made into a convex or concave mirror simply by bending it into the desired shape!

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Check out this amazing tektite stone sample! These small, naturally glossy rocks are made from meteor impacts and can only be found in certain places on Earth's surface.

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Lodestone is a naturally-occurring magnet. Use this magnetic rock to explore the amazing science of magnetism! Kids may see a normal rock at first, but they'll then watch it lift paper clips & other small metallic objects.

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This single clear plastic film canister is perfect for science experiments, storage, or crafting. Discover how you can use one to build your own film canister rocket, teach kids about a bee's sense of smell, and more!

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1-2" red sandstone specimen.

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1-2" gray-white granite specimen.

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This aluminum alloy tuning fork resonates at a set pitch (B) when tapped. Use it for physical science (physics) experiments and demonstrations of sounds waves and vibration.

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Use this HST Rock Tumbling Guide to learn how to use a vibratory rock tumbler and rotary tumbler. Step-by-step rock tumbling instructions make it easier than ever to transform rough rocks into beautifully polished stones!

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This liquid plant food is ideal for hydroponic gardens. It contains all the macro and micronutrients needed for plants.

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Use this 60ml (2oz.) natural HDPE bottle to mix and store chemical solutions. It includes white polypropylene cap with foam liner.

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Each 1 lb bag of paydirt has bits of gold inside - guaranteed! The sand and gravel is from a real gold mine. What will you discover?

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This 500 ml (16 oz) natural HDPE bottle is useful for mixing and storing your chemical solutions.

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This analog bathroom scale is good for weighing heavy items, and also for measuring large forces.

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Individual pad of steel wool. Get quick results in your science fair project about rust!

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This SPDT slide switch contains three metal pins. Use with solderless breadboards.

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Connect this solar cell with the attached wires for experimenting with alternative energy. Approximate size is 1.9 cm x 3 cm.

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Photoresistor with a resistance range of 16k-500k ohm. Perfect addition to your electronic circuit projects.

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MOSFET N-Channel transistor. TO-220. 60 volt and 16 amp.

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This high speed vibrating electric motor has a speed of about 9000 rpm at 3 volts.

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Explore circuits with a breadboard! Create a parallel or series circuit without soldering or using alligator clips.

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This battery holder is made of black plastic and holds two AAA batteries.

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Get enough grit to polish 3 pounds of rock. Includes fine grit, pre-polish, and polish (super fine).

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This high speed DC electric motor runs off batteries or solar cells.

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Holds two AA batteries. Includes cover and on/off switch. Great for electricity science fair projects!

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Get the CR2032 alkaline battery you need for science experiments.

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An excellent digital thermometer designed for taking body temperature! This Prestige Medical Digital Thermometer can be used orally, rectally, or under the arm. Measures in Fahrenheit and Celsius.

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Large specimen of limestone (6-9") with small fossils inside.

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Equilateral prism has 45 mm sides. One end has a hole for adding fluids to study refraction and dispersion. Includes a funnel and stopper.

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These #4 rubber stoppers are 20-26 mm in diameter with two 5 mm diameter holes.

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These #4 rubber stoppers are solid and 20-26 mm in diameter.

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These #5.5 rubber stoppers are 24-28 mm in diameter with one 5 mm diameter hole.

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These #5.5 rubber stoppers are 24-28 mm in diameter with two 5 mm diameter holes.

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These solid #5.5 rubber stoppers are 24-28 mm in diameter.

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hese #6 rubber stoppers are 26-32 mm in diameter with one 5 mm diameter hole.

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These #6 rubber stoppers are 26-32 mm in diameter with two 5 mm diameter holes.

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These #6 rubber stoppers are 26-32 mm in diameter.

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