Open-and-go lessons that inspire kids to love science.

Science curriculum for K—5th grades.

90 sec
  • Hands-on — lead students in the doing of science and engineering.
  • Standards-aligned science lessons — Cover core standards in 1-2 hours of science per week.
  • Less prep, more learning — prep in minutes not hours. Captivate your students with short videos and discussion questions.

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This water is so salty that people float in it without even trying! Do you think something REALLY heavy will float?
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Check it out! Even with a heavy rock on top of him, this person can still float!
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Salt can help other things float too! Try this: drop an egg in water and it sinks. Add salt to the water—it floats!
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You know that farmers raise animals or grow plants, but SALT farms exist too. What do you think those look like?
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Hint: if salt water dries up (evaporates), it leaves salt behind like this! Does this give you any ideas?
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Here’s a salt farm! When ocean water dries up, salt is left behind. The salt in your kitchen comes from here!
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Hmm…all of these animals are licking rocks! Why do you think they’re doing this? What is on the rocks?
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They’re licking salt off of rocks! Animals and people need some salt to survive. A farmer gave this lamb a salt block!
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Check out this pink lake in Australia! This lake has tons of salt in it. But why would a salty lake be pink? Any ideas?
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Look at the water under a microscope. See the tiny pink creatures? They love salt, and make the water look pink!
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What kind of birds are these? (You’ve seen them before, but something seems different…)
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They’re flamingos! Their feathers only turn pink IF they eat a certain thing. Can you guess what they eat?
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Flamingos eat the tiny pink creatures that love salt! So, salt gives us bright pink flamingos!
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Voting for this episode is now closed. Would you like to vote on the most recent poll?

We pulled three questions from our jar. Which question do you want to explore?

  • Why do pandas only eat bamboo?

    -Korban, 3rd Grade

  • What is a drought?

    -Aaliyah, 2nd Grade

  • How do windmills work?

    -Junichiro, Kindergarten

Why is the ocean salty?

Watch the video to discover the answer and don't forget to vote for next week's question. There are mysteries all around us. Have fun and stay curious!