Corks, No. 9, 10 pack

Work through the intricacies of Earth & Space Science with this kit designed for grades 9+.

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Explore the amazing world of Earth & Space with the Complete Introduction to Earth & Space kit (Grades 3-5). Study weather, geology, astronomy, and environmental science. This kit focuses on the features of Earth and the Solar System.

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Explore the changes involved in storing and releasing energy from food. Build a calorimeter and experiment with your food and burn different foods and measure the energy released. Engage in five experiences in this month-long chemistry kit.

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This Microscope Discovery Kit will give you everything you need to explore the microscopic world of protists. It includes the same quality and features as other fine high-school-level microscopes at an affordable price.

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Convert your paper airplane into a flying machine! The POWERUP 2.0 is an easy to use design, with a carbon-fiber propeller shaft and ultra-tough rear propeller to make your flight virtually crash-proof.

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This 30 ml bottle of sodium hypochlorite bleach can be used as a substitute for household bleach (approximately 5% available Chlorine). Find its chemical formula, density, grade, and more below!

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This 100 ml bottle of hydrochloric acid is a concentrated 1 Molar solution. Learn more about hydrochloric acid, and find the concentrated HCl density, concentrated HCl molarity, and more below!

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Use this 2-pound bag of Brazilian tumbling rock (lapidary rough) in your rock tumbler and see it become beautiful polished stones! Rock specimens measure from 1" to 3" and represent many varieties and colors.

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Catalase is an oxidizing enzyme that converts hydrogen peroxide to oxygen & water. This 200 mg bottle will make 500 mL of solution. You can find catalase enzymes in many living organisms, including bakers yeast!

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Albumin is a water-soluble protein that coagulates in heat. Discover more about the world by experimenting with the protein that makes up egg whites! This 100 g bottle comes in powder-form.

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