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# Animals Through Time  Mystery 3

In this Mystery, students will learn how a dinosaur’s footprints reveal how quickly a dinosaur was running.

## Can you outrun a dinosaur?

Beginning Exploration (1 of 9)
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Beginning Exploration (2 of 9)

Discuss: What can you figure out about these two animals, just by looking at their footprints? (For hint, see next slide.)

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Beginning Exploration (3 of 9)

Hint: You can tell a few different things. For example, you can tell whether the animal walks on two legs or four legs. You can also tell how many toes and what shaped feet the animal had.

Reveal answer

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Beginning Exploration (4 of 9)
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Beginning Exploration (5 of 9)

Discuss: Which ostrich do you think was moving faster? How do you know?

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Beginning Exploration (6 of 9)

Quick Practice before the next video: Look at this image and decide: Where was Pat walking? Where was Pat running? Why do you think that? (Answer on next slide.)

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Beginning Exploration (7 of 9)

Answer:

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Beginning Exploration (8 of 9)
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Beginning Exploration (9 of 9)

Discuss: Here are CeeLo’s footprints when he was running his fastest. How could you figure out if you could run faster than CeeLo?

Reveal answer

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Beginning Activity: Outrunning CeeLo
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# Activity Prep

Before class, you need to photocopy worksheets for students and tape printouts of dinosaur footprints to the floor in the right spacing. (We're calling this the dinosaur racetrack.)

For the racetrack, you will need:

For the activity, each student will need:

# Activity Summary

Students will try to “outrun” a dinosaur by taking larger steps than the dinosaur took. Using a number line, students will calculate the “stride length” of their classmates. Using a graph, students will also figure out whether their classmates could outrun a stegosaurus, a Tyrannosaurus rex, or a triceratops.

Beginning Complete!

You've completed the Exploration & Activity!

If you have more time, view the assessment, reading and extension activity in the optional extras.

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# Optional Extras

##### Below are ideas for extending this topic beyond the activity & Exploration which you just completed.
• Reading: First impressions tells of the discovery of dinosaur tracks in a Massachusetts field 200 years ago.

• Activity: Your class can apply their detective skills to dinosaur footprints in Be a Sleuth: How Dinosaurs Behaved, a hands-on activity from the American Museum of Natural History.

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# Image & Video Credits

Mystery Science respects the intellectual property rights of the owners of visual assets. We make every effort to use images and videos under appropriate licenses from the owner or by reaching out to the owner to get explicit permission. If you are the owner of a visual and believe we are using it without permission, please contact us—we will reply promptly and make things right.

Exploration
size chart by Conty , used under CC BY
footprints in mud by R.T. Bird
cat in snow by Rosana Prada , used under CC BY