Learn about microscopic structures through puzzles
We've taken pictures with an electron microscope and turned them into jigsaw puzzles.
Piece together the puzzles and take a closer look at the microscopic structures.
Maybe you'll discover something you've never seen before!
The answer is a grain of "sun sand"! This sun-shaped sand is actually made of the shells of tiny creatures called forams. Depending on the type of foram, they can be called "star sand" or "sun sand."
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