This ExploreLearning Gizmo allows the user to study photosynthesis in a variety of conditions. Oxygen production is used to measure the rate of photosynthesis. Light intensity, carbon dioxide levels, temperature, and wavelength of light can all be varied. The user can determine which conditions are ideal for photosynthesis, and understand how limiting factors affect oxygen production. The resource includes an exploration guide and assessment questions.
This ExploreLearning Gizmo allows the user to play the role of a bird hunting both dark and light moths that live on trees. As the bird captures the moths that are most easily visible against the tree surface, the moth populations change, illustrating the effects of natural selection. The resource includes an exploration guide and assessment questions.