Curated OER
Build Your Own Submarine
Students construct their own submarine following a certain procedure. In this physics lesson, students calculate the density of objects using a mathematical formula. They explain why some object floats in water while some do not.
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Ups and Downs of Diving
Students explore the science and sport of scuba diving. In this scuba diving lesson, students build Cartesian divers and observe their behavior under water pressure.
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Air Pressure
Students examine air pressure. In this air pressure lesson, students perform a series of experiments to evaluate the effects of air pressure.
Curated OER
Pressure, Density and Buoyancy
Students investigate how changing pressure affects density. In this physics lesson plan, students explain the relationship between density and pressure. They observe the Cartesian diver in the lab as pressure is changed inside.
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Strength of Water
Students perform experiments using flexible bottles of water and eyedroppers partially filled and placed in the bottle. They record what happens when they tighten the bottle lid and squeeze the bottle.
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Activity #15 The Cartesian diver
Learners comprehend that the Cartesian diver is a dropper and the water and air inside it. They vary the volume of the air and the amount of water, the diver can be made to be either more or less dense than water. Pupils squeeze the...
Curated OER
Condiment Diver
Students create a Cartesian diver out of a bottle of water and a condiment packet (soy sauce, ketchup, etc.) They observe what happens to the packet as they squeeze the bottle and determine which types of condiment packets make the best...