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  • Air
    $22.00 Choose Options Air
    What do you tell a younger child who wants to know what air is? This course explains air in simple terms and with illustrations, and includes information about air, such as its existence in soil, in water, and in one's body...
  • Basic Biology Series: Amphibians
    $22.00 Choose Options Basic Biology Series: Amphibians
    Why are frogs and toads called amphibians? How are they different from reptiles? Where are you most likely to find wild amphibians? In this illustrated course, students get to choose from eight practical projects where they...
  • Basic Biology Series: Animal Kingdom
    $28.00 Choose Options Basic Biology Series: Animal Kingdom
    There are so many different kinds of animals in the world, how can we keep them all straight? One way is to group them by the ways they are alike. In this fully illustrated course, the student learns how to group animals...
  • Basic Biology Series: Animals of Long Ago
    $28.00 Choose Options Basic Biology Series: Animals of Long Ago
    The subject of dinosaurs is often a popular one with younger children. This course presents information about those animals of long ago at a level easily accessible to a young student, and provides illustrations for each...
  • Basic Biology Series: Birds
    $33.00 Choose Options Basic Biology Series: Birds
    How does a bird grow inside an egg? Why do woodpeckers peck at trees? What makes a hummingbird hum? In this illustrated course, students learn about many different birds, both land and water birds, from mockingbirds to the...
  • Basic Biology Series: Fish
    $24.00 Choose Options Basic Biology Series: Fish
    How do fish breathe? Is an eel really a fish? How are sharks different from other kinds of fish? In this illustrated course, the student gets to choose from 11 practical projects where he can study real fish. He finds out...
  • Basic Biology Series: Insects
    $33.00 Choose Options Basic Biology Series: Insects
    How are all insects alike? How does a caterpillar turn into a butterfly? In this illustrated course, the student gets to choose from eleven projects where he can study live insects. He learns about social insects, and how...
  • Basic Biology Series: Mammals
    $33.00 Choose Options Basic Biology Series: Mammals
    What does "warm blooded" mean? How do mice and squirrels keep their teeth from growing too long? Which mammals are the fastest runners? What is a mammal anyway? In this course, the student gets to choose from 12 practical...
  • Basic Biology Series: Reptiles
    $24.00 Choose Options Basic Biology Series: Reptiles
    What does "cold-blooded" mean? Do reptiles have voices? Do any reptiles eat plants? In this illustrated course, the student gets to choose from eight projects where he can study live reptiles (maybe even visit an alligator...
  • Energy from the Sun
    $24.00 Choose Options Energy from the Sun
    In this illustrated, hands-on course, the student learns about what energy is, how it comes from the sun, and how it can go from burning wood (fire) to steam heat in a radiator to heat in a building. The student does many...