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Astrocytes can release gliotransmitters (like glutamate) by exocytosis to send signals to neighboring neurons.

Genetic Science Learning Center features animations and activities for learning about DNA, cells, and other topics in...

Image of a word search

NCES Classroom invites students to create their own graphs, solve a math teaser, play a probability...

Six Elephant on Triangle.  The triangle is still standing because the pulling force in the bottom side is balancing the pushing forces in the upper sides.

Building Big Labs helps kids think about structures they see every day and the impact of technology on...

Our dice game allows you to see how increasing or decreasing the number of dice rolls effects an outcome.

Dare to Compare invites you to test your knowledge against students nationally and around the world...


National Institutes of Health

Education Dept

Endowment for Humanities

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