Tree Rings - Science of Trees

Tree RIngs

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tinyurl.com/NFTreeRings

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TREE RINGS

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tree rings: easy

Driving Question:

How can we use tree rings to observe and analyze the world around us?

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tree rings: easy

Tree Rings:

the tree rings record how much rain, how much space, and how much sunlight the tree had during the year.

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tree rings: easy

Tree Rings:

as baby trees grow up, they add rings from the inside of their stem. The oldest rings are in the inside of the tree and the youngest are on the outside.

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tree rings: easy

Tree Rings:

TREE RINGS CAN ALSO TELL US HOW THEY GREW. SOMETIMES YOU CAN SEE WHERE THERE USED TO BE BRANCHES. IN TREE RINGS THEY LOOK LIKE TINY SWIRLS. SOME ARE CIRCLED IN THE PICTURE TO THE RIGHT. can you find the others?

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tree rings: easy

Tree Rings:

other trees may have been exposed to fire. this type of scar helps scientists determine if and when there had been any fires in the forest. they can use it to compare with other tree ring samples in the area.

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tree rings: easy

Tree Rings Challenge:

Let's see how a tree can change over time. can you put these rings in the correct order? Click the green icon to check your work.

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tree rings: easy

Tree Rings Challenge:

let's check your work. Great job!

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tree rings: easy

A Tree Rings Mystery!

EEK! a STRANGER JUST LEFT THIS NOTE ON YOUR DOOR. WHAT DOES IT SAY? USE YOUR KNOWLEDGE OF TREE RINGS TO DECIPHER THE CODE! grab a sheet of paper, a pencil, and CLICK THE envelope TO BEGIN!

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set up your paper to look like the neighbor's note and then begin!

All finished!

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To read the note, use the number of rings to find the correct letter. For example, 1 is the letter "L"

Click the key if you are having trouble.

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12

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tree rings: easy

CONGRATULATIONS! YOU'VE EARNED A BADGE!

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tree rings: Medium

Driving Question:

How can we use dendrochronology, or the study of tree rings, to analyze changes in human history?

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tree rings: medium

Tree Rings:

as trees die and make space in the forest, new trees come to take their place. over thousands of years these tree rings, if preserved, can show us how an environment has changed over time.

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Petrified Tree Petrified Forest National Park

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tree rings: medium

Tree Rings:

Tree rings CAN ALSO HELP US UNDERSTAND HUMAN HISTORY. archeologists can use tree rings to tell when ancient ships and cities were built.

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Shipwrecked- A Tree Rings Challenge!

you've found FOUR shipS AT THE BOTTOM OF THE OCEAN that were BUILT FROM THE SAME FOREST! USE The TREE RING KEY TO DETERMINE THE ORDER IN WHICH THE SHIPS WERE BUILT.

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Click the KEY to determine when the ships were built. Drag the SHIPS onto the timeline to show your work!

Click here

KEY Tree Ring Index

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Trees add rings as they grow. The ship with the fewest rings would have been built around 1440. The ship with the most rings would have been built most recently (around 1750).

ALL FINISHED

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tree rings: medium

Other uses of Dendrochronology

Determine if a violin was a true Stradivari (worth $10-$20M) or a fake

Study pine needles to understand changes in climate and environment

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tree rings: medium

CONGRATULATIONS! YOU'VE EARNED A BADGE!

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tree rings: HARD

Driving Question:

How can we use tree rings to analyze environmental systems?

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tree rings: hard

Tree Rings:

tree rings record how much rain, how much space, and how much sunlight the tree had during the year.

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tree rings: hard

Tree Rings:

trees can't grow in just any kind of soil. the progression on the right kind of environment for trees is called ecological succession

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Illustration 224302745 / Ecological Succession © VectorMine | Dreamstime.com

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tree rings: hard

Tree Rings:

by comparing tree rings of various trees, scientists can determine the ecological succession of an area. they can also determine how long the area has been in a particular succession stage.

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tree rings: hard

Tree Rings Challenge:

what stage of ecological succession is this field in? Click the green icon to check your work.

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tree rings: hard

Tree Rings:

what stage of ecological succession is this field in?

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tree rings: hard

STEAM CHALLENGE:

Scavenger hunt time! go find a stage of ecological succession in your area. Create two comparison drawings. one is what the area looks like now and the second is what it will look like at the climax community. We can't wait to see what you've created!

Scan the QR code or click here to upload a picture of your drawings!

https://flipgrid.com/e7fead67

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tree rings: Hard

CONGRATULATIONS! YOU'VE EARNED A BADGE!

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