Home Science Tools 4-pack AA batteries, 1.5 volt, alkaline. Great for electricity and circuit projects!

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This booklet is a great way to learn about fluorescence in general and fluorescent minerals in particular.

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These No. 2 rubber stoppers are 16-20 mm diameter with two 4.8mm diameter holes.

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This 250 ml (8 oz.) natural HDPE bottle is useful to mix and store chemical solutions.

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A very strong grade-five 1.14"-diameter ceramic ring magnet.

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Sodium bicarbonate.

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This economy ramp for inclined plane studies is 22" long, 5" wide, and constructed of wood.

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This flexible plastic tape measure--often used for sewing--meets many experimental measurement needs.

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This strip is 3/4" wide and 4" long. It weighs about 12 grams.

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Diameter of 18-24 mm. Fits plastic soda bottles.

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One-pound bag of fine, white white-to-gray sand.

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These #00 rubber stoppers are 10-15 mm diameter.

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These solid No. 2 rubber stoppers are 16-20 mm diameter.

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Use with our electric motor to make a fan or for other projects.

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This strip is 3/4" wide and 4" long. It weighs about 4 grams.

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One-pound bag of fine gravel.

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Sodium tetraborate (Borax) is an organic compound with the formula Na2B4O7. Borax powder is a naturally occurring mineral with many uses. Use it to make a bath bomb, a bouncy ball, or mix it with white glue to make slime!

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This 50 ml PYREX brand narrow mouth Erlenmeyer flask with a heavy duty rim is made from low expansion, Type 1, Class A borosilicate glass that can be heated directly in an open flame.

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These clear glass shell vials are perfect for collecting small insects and other specimens.

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These #0 rubber stoppers are 13-17 mm diameter with one 3 mm diameter hole.

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These #5 rubber stoppers are 23-27 mm diameter with one 5mm diameter hole. No. 5 rubber stoppers fit Pyrex 125 ml Erlenmeyer flasks.

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Individual steel ball that is 1" in diameter.

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Food grade citric acid. Used in cheese making and other food preservation processes.

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Though more affordable than glass, this 2000 ml polypropylene beaker still serves many lab uses. Polypropylene plastic beakers withstand hot liquids, but not open flame. They are not suitable for strong acids, bases, or solvents.

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These # 6.5 rubber stoppers are 27-34 mm diameter.

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Constructed with three low-friction plastic wheels (48mm diameter),a steel housing, and hooks on both ends.

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This affordable hand-cranked DC generator demonstrates the conversion of mechanical energy to electrical energy.

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These #8 rubber stoppers are 33-41 mm diameter with one 5 mm diameter hole.

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Stir up some fantastic chemistry with this solid, polypropylene stirring rod!

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Know any aspiring paleontologists or kids who love fossil hunting? The four standard size and small fossils specimens in this starter kit provide a great way for them to begin their fossil studies!

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This 2000 ml polypropylene lab pitcher is similar to a beaker in shape but with a sturdy handle and larger spout for easy pouring.

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Plastic measuring spoons for measuring chemicals for laboratory experiments and activities.

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These #00 rubber stoppers are 10-15 mm diameter with one 3mm diameter hole.

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These large No. 9 lab-grade corks fit 1-2 liter plastic soda bottles.

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Use to dispense indicators and stains. Has a dropper tip and overcap.

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