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Popular Lessons

  • Growth Stages 1: Infancy and Early Childhood

    This lesson introduces students to the stages of human growth and development that take place during infancy and early childhood.

  • Sink or Float?

    In this activity students will determine whether various objects sink or float in water.

  • Plasmolysis in Elodea Plant Cells

    In this lesson, students microscopically observe various subcellular components and determine the effects of different salt solutions on Elodea plant cells.


Recent Lessons

  • Classify It!

    Students learn that organisms can be sorted into groups in many ways using various features to decide which organisms belong to which group.

  • Garbage 2: Recycling

    In this lesson, students learn about the problems of waste disposal and how recycling can help to reduce the amount of waste we create.

  • Garbage 1: The Roots of Trash

    In this lesson, students identify natural resources used to produce common items and how science and technology are used in the process.


Popular Lessons

  • Is Pluto a Planet?

    In this lesson, students model objects in the solar system and draw conclusions about whether Pluto should be considered a planet.

  • The Frog Scientist 1: The Mystery of Disappearing Frogs

    This lesson introduces students to Dr. Tyrone Hayes, a biologist who is using a combination of scientific fieldwork and lab experimentation to understand how ...

  • Thomas Edison for Kids

    By studying Thomas Edison's life and inventions, students will develop a broader view of technology and how it is like and unlike science.

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