Why do our skeletons have so many bones?

Why do our skeletons have so many bones?

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DISCUSS:

What do bones do for your body?

EXTENSION FOR OLDER STUDENTS

Students Grade 3 and up can extend this activity by comparing the human hand to the bones of a mystery animal. Go to the next slide for step-by-step instructions.

DISCUSS (1 of 2):

How are the bones in bat wings and human hands similar to each other? How are they different?

answer-key

DISCUSS (2 of 2):

Thinking about how bats use their wings and how humans use their hands, can you explain the differences in their bones?

Activity Prep

Print Prep
In this mini-lesson, students consider what would happen if their body didn't have bones. In the activity, Skeleton Hand, students combine science with art -- they trace their hand and add see-through bones to their picture, making their own skeleton hand.
Preview activity

Exploration

13 mins

Wrap-Up

2 mins

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Why do our skeletons have so many bones?

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