Dillon Power Point

8/2/2019 Dillon Power Point

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How long is the AverageEarthworm?

Mrs. Dillon6th Grade Science

Measuring

Earthworms


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N.C. Standard 1.06

Objective 1.06

Use mathematics to gather, organize, and present

quantitative data resulting from scientificinvestigations:

Measurement.

Analysis of data.

Graphing. Prediction models.


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Contents

Earthworm Facts

What is an invertebrate?

What do earthworms eat?

Why are earthworms important?

How to measure an earthworm

How to find the average length

Example Measurement

Finding the class average

Graphing your Data

Conclusions

Test your knowledge


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What do youthink

invertebrate is?


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An invertebrate is an animal with no backbone.

Other invertebrates:

Jelly fish

Clams

Spiders

Crabs

Insects


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A lot depends on where the worm lives.

Leaves

Grass

Cardboard

Garbage

Sawdust

http://www.worm-farming.com/what-worms-eat.html
http://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.html


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Why are earthwormsimportant?

Structure of the soil

Break down leaves and grass into things plants can

use

Increase the amount of air and water in the soil

Mix the soil layers

http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3
http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3


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How to measure anearthworm

Lay the earthworm on a piece of paper.

Take a pencil and mark at the right side, then the

left side

Place the ruler next to the lines and match the 0 onthe ruler to the mark on the left

Where the right mark reaches is the length of theworm.


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How do you find the averagelength of an earthworm?

Measure 10 worms

Record all the lengths

Add all 10 lengths

Divide the total by 10 for your average.


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Example

4.9 + 8.1 + 5.7 + 6.2 + 7.8 + 7.1+ 6.9 + 5.2 +8.0 + 5.5

= 65.4

65.4/10

= 6.54

The average length of a classroom worm is 6.54 cm


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Finding the Class Average

Gather each groups earthworm measurements

Add them together

Divide by the total number of entries

You now have the average length for theclassrooms earthworms


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Why Graph the Data?

Graphing the data is a quick and

easy way to present information


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Graph Your Data

Take a pencil and graph paper

Draw your graph with x being the number

earthworm you are graphing and y being the length

Plot each worms measurements

What does your plotline look like? Are the numbers close?

How many fit the average length ofearthworm?


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Conclusions

Was the class average close to the species average?

Was it more or less?

Why do you think that is?

Did you enjoy this lesson?


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a. An animal with vertebrate inside its body

b. An animal with a backbone

c. An animal without a backbone

d. None of the above
http://sorry%20try%20again%21/http://sorry%20try%20again%21/


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a. Leaves

b. Grass

c. Garbage

d. All of the above


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Correct! Awesome Job!


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Sorry Try Again!


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Credits

http://urbanext.illinois.edu/worms/live/index.html

http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3

http://animals.nationalgeographic.com/animals/invertebrates/earthworm/

http://www.worm-farming.com/what-worms-eat.html
http://urbanext.illinois.edu/worms/live/index.htmlhttp://urbanext.illinois.edu/worms/live/index.htmlhttp://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://animals.nationalgeographic.com/animals/invertebrates/earthworm/http://animals.nationalgeographic.com/animals/invertebrates/earthworm/http://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://www.worm-farming.com/what-worms-eat.htmlhttp://animals.nationalgeographic.com/animals/invertebrates/earthworm/http://animals.nationalgeographic.com/animals/invertebrates/earthworm/http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://www.earthwormsoc.org.uk/earthworm-information/earthworm-information-page-3http://urbanext.illinois.edu/worms/live/index.htmlhttp://urbanext.illinois.edu/worms/live/index.html

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