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This modeling activity allows learners to discover for themselves what Mendel uncovered in his famous pea experiments.

Learners manipulate opaque, sealed boxes and attempt to determine their interior structures. Each box contains a moving ball and one or more fixed barriers.

In this activity, learners explore how various energy sources can be used to cause a turbine to rotate.

This activity (located on page 2 of PDF) introduces learners to the real size of animals using nonstandard measurement.

During this interactive "survival" game, students learn about the importance of camouflage and how it helps animals to blend into their surroundings, as either predator or prey.

From the Weather Watchers featured theme on the CYBERCHASE website. Learners will conduct experiments to discover how air temperature and humidity work together to make condensation, dew, and fog.

In this activity, learners will examine a variety of seeds, describe them, and determine how they are dispersed.

In this engineering activity, learners design their own board games.

In this activity about the solar system, learners use various light sources to examine ice with different components to understand how NASA studies planets and moons from space.

In this activity, a group of learners work collaboratively to design and construct a paper model showing the evolution of an environment through multiple stages, from prehistory through the modern cit