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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.

Ancient trash tells archaeologists a lot about the past. In this activity, learners take a close look inside their trash can and think about the clues it offers about their lives.

In this activity, learners interpret three trackways and use measurements and a formula to infer the relative speed of dinosaurs.

In this experiment, learners examine how pressure affects water flow. In small groups, learners work with water and a soda bottle, and then relate their findings to pressure in the deep ocean.

In this activity, learners discover how solar energy can be used to heat water.

In this archaeology-related activity, learners build their own time capsule and choose a storage location and a date to reopen it.

In this experiment, learners float colored ice cubes in hot and cold water.

This activity helps learners understand how the angle of the Sun affects temperatures around the globe.

Using simple, inexpensive items, learners build and test submarine models.

Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.

In this activity about cartography, learners work in teams to create two different map projections: a planar (or polar) and a cylindrical (or Mercator) projection.