These would be absolutely fantastic with any human body unit study and deep dives! Simply place the brain in a large jar of water. 

Here's what I like to do: On day 1 of your unit study (or day 1 of the brain portion of your studies when learning about the human body) I like to introduce the subject and put the brain in a large, clear, and pretty mason jar. Everyday while we study the brain, we can watch it grow and serves as a fun visual for us when we're learning all about the human brain.

The makers state that it will fully grow into a full size human brain.

Adult Supervision :

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