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Why don't the same trees grow everywhere?
Animal & Plant Adaptations Unit | Lesson 3 of 3

Why don't the same trees grow everywhere?

Animal & Plant Adaptations Unit | Lesson 3 of 3
Lesson narration:
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DISCUSS:
What parts are similar to other trees you’ve seen?
What parts are different?
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DISCUSS:
Based on their structure, what do you think these curvy parts do to help this tree survive?
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Step
01/21
In today’s activity, you’ll work with a partner.
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02/21
Get these supplies. (You'll get more supplies later.)
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03/21
Look for similarities and differences among the roots of six types of
trees. Write (and draw) your observations on your Roots worksheet.
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04/21
Discuss.
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05/21
Watch carefully to observe what happens when it rains in
Environment A and Environment B. Answer questions 1a and 1b on
your Evidence worksheet.
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06/21
Discuss.
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07/21
Answer questions 2a and 2b on your worksheet.
Be sure to support your claims with evidence you gathered earlier.
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Discuss.
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09/21
Get these supplies.
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Partner 1: Hold both branch models over the side of your desk.
Partner 2: Put a heavy book on top of the ends to hold the branches
in place. Make sure the branches are the same length.
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Add 1 paper clip to the tip of each branch model.
Discuss. Then, answer question 3 on your Evidence worksheet.
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Explore what happens as you add even more paper clips to the tips
of your model branches. Discuss what you notice with your partner.
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Answer question 4 on your Evidence worksheet.
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Watch what happens when we add a lot of weight to our branches.
Discuss what you notice with your partner.
Then answer question 5 on your Evidence worksheet.
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15/21
Discuss.
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16/21
Watch how two types of real tree branches function under different
weights. Then, discuss:
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17/21
Get your final supplies.
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Step
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Read the Anchortown Forest info sheet. Use your red colored pencil
to underline information about which kind of roots help trees survive
in Anchortown Forest.
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Review all clues from your Evidence sheet and the Anchortown Info
sheet. Discuss with your partner. Answer question 1 and then draw what you think the roots look like.
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Read the Anchortown Forest Info sheet again. Use your blue colored
pencil to underline information about which kind of branches help
trees survive in Anchortown Forest.
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Review all clues from your Evidence sheet and the Anchortown Info
sheet. Discuss with your partner. Answer question 2 and then draw what you think the branches look like.
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DISCUSS:
What else can you notice about this tree?
How would you describe its structures?
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DISCUSS:

What are some parts of your body that work together as a system?

How does that system help you survive?

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DISCUSS:
Based on the evidence, how might this tree’s structures help it stay safe in an environment filled with water?
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DISCUSS:
What pattern do you notice about the places where these types of trees are
found?
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trunk


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the thick middle part of a tree
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branch


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a part of a tree that grows out from the trunk and usually has leaves
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leaf


3 of 14

a part of a plant that is often flat and green
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root


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a part of a plant that is usually under the ground
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structure


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the specific form and shape of something
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function


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what something does
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external


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the outside of something, including the outside of living things
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internal


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the inside of something, including the inside of living things
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environment


9 of 14

all the living and nonliving things in a particular place
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taiga (boreal forest)


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a cold, forest environment where trees often have needle-shaped leaves
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adaptation


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a physical trait or behavior that helps a living thing survive in its environment
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system


12 of 14

a group of things that affect each other and function as a whole
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model


13 of 14

a pretend version of something that scientists use when the real thing is too big, small, or complicated to work with
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evidence


14 of 14

information that can be used to support or reject an idea
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Lesson narration:

Grade 4

Animal & Plant Adaptations

Plant Adaptations

4-LS1-1

211 reviews

Activity Prep

Print Prep
In this lesson, students make observations of external and internal parts of trees in order to collect evidence that these structures work together as a system to help plants survive in a particular environment. In the activity, Tree Detective, students use models of roots and branches to explore their functions and then construct an argument about how these structures must work together in order to support the survival of trees in the unique environment of the frozen taiga.
Preview activity

Exploration

10 mins

Grade 4

Animal & Plant Adaptations

Plant Adaptations

4-LS1-1

211 reviews
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