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In this experiment, learners work in teams to investigate how the color of a surface influences its ability to reflect light and therefore heat.

In this space science activity, learners explore transits and the conditions when a transit may be seen.

In this activity, learners test the Law of Reflection based on experimental evidence. Learners produce raw data and explanations based on their data: pencil tracings of incident and reflection rays.

Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

In this activity, learners make a scale model of the Solar System and learn the real definition of "space." Learners use the online calculator to create an appropriate scale to use as a basis for thei

In this lab (Activity #1 on page), learners explore how we see color.

In this activity, learners explore conservation of energy by experimenting with a solar cell light device.