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Matter Sorter

You know the "states of matter", right? Solid, liquid, gas... and plasma? Test your knowledge by sorting the falling objects into the appropriate bins. Be careful though: you're only allowed a few mistakes, and each level will be faster than the last.

For teachers: You can use this with middle school science units on the states of matter. We've had reports of teachers projecting this activity, with students shouting out the answers.

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