In this activity, students use a sling psychrometer to measure the relative humidity in the classroom over an extended period of time. They use this information to make connections between the water content in the air and how comfortable they feel.
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Students place ice cubes on two identical looking blocks made of aluminum (a conductor) and plastic (an insulator). The ice cube on one block quickly disappears, while the ice cube on the other block remains stubbornly frozen. Using Vernier Go! Temp probes, students observe temperature changes in each block and draw conclusions about the heat conductivity of the two materials.
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In this activity, a ring and ball apparatus is used to show how microscopic processes can affect macroscopic properties. At room temperature, the brass ball can easily pass through the ring. However, when the ball is heated, the molecules that make up the ball spread apart and cause the ball to expand so that it no longer fits through the ring.
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In this activity, students explore the relationship between heat energy and color using a Leslie's cube with four different colored sides (white, matte black, glossy black, and shiny tin). The cube is filled with water heated from the outside using a table lamp. Students use a Vernier Go!Temp probe to find out which side of the cube transfers the most heat to the water in a given amount of time.
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This activity demonstrates the effects of temperature on density. When placed in a beaker of cool water, the density ball floats. When the water is heated, its density decreases, and the ball sinks to the bottom of the beaker.
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In this activity, students estimate how much electricity they use at school and come up with ways to reduce their electricity-related carbon emissions and energy costs.
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