Why is the sea salty?
Watch clear saltwater dry. Follow dissolved substances from rocks and rivers to the ocean.
Explore togetherCuriosity Bundle · Grades 3-5
Land and Water
Investigate salt river bends mountain air and dry places.
Pick a question to explore together. Find readings, hands-on discoveries, and printable sheets inside.
Choose a question
Why do rivers bend?
Watch a tiny channel change. Explore moving material, river bends and loops left behind.
Explore together
Why is it colder on mountains?
Test what a distance model can show. Explore the air above the ground and why rising air can cool.
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Why are some places deserts?
Look beyond sand and heat. Compare clues about dryness, then explore rain shadows and other desert patterns.
Explore together