Looks at the types of information available for research on the Internet, explains how to find and evaluate Internet information, and discusses issues of safety and responsibility.
Tells the story of the Bill of Rights, the abolitionists, Abraham Lincoln, the Emancipation Proclamation, and Susan B.Anthony--describing their roles in protecting human rights.
Explains how scientists determine whether an animal species is threatened or endangered; discusses several species threats and conservation efforts, including the rescue of northern sea otters after the Exxon Valdez oil spill; and presents a hands-on investigation of chemical levels in two bodies of water.
Introduces the basic forms of matter: solid, liquid and gas and how matter can change from one form to another. The terms melting point, freezing point and boiling point are clearly explained. Includes a hands-on activity that demonstrates how different liquids evaporate at different rates.
Introduces the concepts of forces, work, and how machines are used to make work easier, with descriptions of six simple machines, including the lever, wheel and axle, pulley, inclined plane, screw, and wedge.
Butterflies and moths are beautiful and delicate, yet some, like monarch butterflies, are strong enough to fly hundreds of miles in their yearly migration. This program explores interesting facts about both types of insects, explains their amazing metamorphosis and shows how to tell them apart. In the studio, Dr. Art and Christina examine monarch caterpillars and build a caterpillar habitat in order to watch them transform into butterflies.
Gives children a close-up look at what makes the third planet from the Sun so special. Explains why there is life on Earth, what our planet is made of, and how it fits into the rest of the universe.
