Pbs Teachers: Scientific American: Forever Wild? Input and Output

Investigate the science behind global warming with these classroom activities. Compare light and dark objects to see how they respond to light absorption and heat generation, and describe the albedo values of various materials.

Explore efforts to return parts of the American prairie using controlled cultivation and grazing. Compare and contrast the effects of various levels of ground shade on new seedlings.

Explore the characteristics of binaural hearing and discover how two ears are utilized in determining the direction of a sound's origin. Produce auditory illusions by reversing and extending the detection site for each ear.

Explore scientific research saying that continued brain activity may delay or slow the loss of memory function. Investigate and practice different techniques to increase recall.

Explore scientific research that says continued brain activity may delay or slow the loss of memory function. Investigate and practice different techniques to increase recall.

Explore possible explanations of salmon's homing instincts. Record a path based upon olfactory cues, discriminating between and following specific scents placed at critical junctures along the designated path.

Investigate the innovations surrounding fuel cell technology and the potential use of hydrogen as an automobile power source. Generate hydrogen gas by splitting water in a process called electrolysis.

Investigate the physical force exerted upon organisms and objects by the environment, and relate pressure to depth in deep-sea exploration. Experiment to discover the impact of pressure on the lungs.

Explore the relationship between pressure and vessel diameter and create a model that represents how elevated blood pressure may affect weakened vessels. Design and critique a repair device.

Explore the vocabulary and vocalizations in chimpanzee communications and connect them to emotions. Develop and participate in a field study of animal behavior based on observations and interactions with dogs