Free Activities

A collection of free activities for your science classroom.

  • For chemistry teachers who want a fun way to teach pH

    For chemistry teachers who want a fun way to teach pH

    This chemistry activity for students in grades 9 through 12 shows the effect of pH change on indicator color. The resulting solution can be used as an ink to write messages that disappear over time.

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  • From liquid to solid – The Fantastic Floating Foam Reaction0:14

    From liquid to solid – The Fantastic Floating Foam Reaction

    Science teachers: Want to see this quick, safe, and cool chemical reaction in your own classroom? Check out our step-by-step chemistry activity for middle and high school to find out how easy it is.

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  • Hey little bacteria, why so negative?0:16

    Hey little bacteria, why so negative?

    To identify bacteria as gram-negative or gram-positive based on cell walls, you have to do some gram staining. Find out how with our step-by-step biology activity for high school and college students.

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  • Breaking news: Tornado warning in your classroom0:16

    Breaking news: Tornado warning in your classroom

    Why just talk about the physics of a vortex when you can create one in minutes? Download this easy science activity for elementary and middle school and you’ll have a tornado in a bottle in no time.

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  • The sweet smell of success: a lesson plan on esters and organic synthesis

    The sweet smell of success: a lesson plan on esters and organic synthesis

    This chemistry activity for students in high school & college has them mixing acids & alcohols to create familiar smells. You’ll also help them learn about organic synthesis & condensation reactions.

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  • Looking for an activity on redox reactions? Here’s a simple one.

    Looking for an activity on redox reactions? Here’s a simple one.

    If you want to demonstrate oxidation and reduction for your students, you can’t go wrong with this “blue bottle” activity. Sodium hydroxide, glucose, and methylene blue solution are all it takes!

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  • Free Chemistry Activities

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  • How to make your own algae beads and have a ball studying photosynthesis

    How to make your own algae beads and have a ball studying photosynthesis

    This activity for grades 6 through 12 will show you everything you need to make your own algae beads so your students can learn about the most vital biochemical processes on the planet.

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  • Download Free Physics Lesson Plans & Resources

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  • I'm just here for the popcorn: A heat transfer lesson plan.

    I'm just here for the popcorn: A heat transfer lesson plan.

    This quick activity for middle- and high-school chemistry uses popcorn to teach thermal energy concepts.

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  • How to cultivate and care for your butterfly larvae (plus a free activity!)5:25

    How to cultivate and care for your butterfly larvae (plus a free activity!)

    These painted ladies are more than just a pretty face - they're a robust teaching tool for your life science classroom.

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  • Density has never been more delicious: A high school lesson plan.

    Density has never been more delicious: A high school lesson plan.

    Download this lesson plan and you’ll have high school science students eating out of the palm of your hand (the Tootsie Rolls help a lot too).

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  • What is climate change? A middle school lesson plan.

    What is climate change? A middle school lesson plan.

    Download this lesson plan and immerse your science students in one of the most significant scientific developments of their generation.

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  • The periodic table of candy: A chemistry lesson plan.

    The periodic table of candy: A chemistry lesson plan.

    Download this lesson plan and your science students can get a heaping helping of knowledge about the elements to go with their gum drops and jelly beans.

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  • The thorny problem – a Japanese beetle lesson plan.

    The thorny problem – a Japanese beetle lesson plan.

    Download this easy biology lesson plan and use live beetles to help middle school science students gather, analyze, interpret, and report scientific data.

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  • A spectacular ocean view – marine mural lesson plan.

    A spectacular ocean view – marine mural lesson plan.

    Download this artful biology lesson plan for a creative way to teach high school science students about undersea food webs and ocean ecosystems.

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  • Foliage findings – a leaf pigment lesson plan.

    Foliage findings – a leaf pigment lesson plan.

    Download this simple biology lesson plan and introduce elementary science students to the plant pigments responsible for autumn leaf colors.

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