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I pulled three questions from my jar. Which question do you want to explore next week?
What are you curious about?
Every week, Doug pulls three questions from his jar and chooses one to answer in a short video.
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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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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!
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