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�������� �!���"���#����� Cut out ALL seed patterns and follow the folding directions. Write your team name on the seeds.

Hold the seed at shoulder height and let go. Check that the seed spins as it falls.

Have one person stand at the railing holding one seed. Another person waits on the forest floor to time the seed’s fall. (Always drop seeds from same place.)

Drop the first seed over the railing and start the stopwatch!

When the seed lands, stop the stopwatch!

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*�������������"�+��"���Repeat Step 3 through Step 6 for all the other seeds. Circle the longest time in each category.

(��,���- ���Like a dipterocarp tree, the maple trees in our backyards also have winged seeds. However, a maple seed has just one wing instead of two.

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Discovery Forest (Harold C. Schott Education Center). Select a place along the railing overlooking the forest.

10 minutes

Find a partner and choose a team name.

Don’t drop seeds near sloth. When finished, recycle fallen seeds and all trash. Please return all other items to your Wild Pack.

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Scissors

SMALL SEEDSHORT WING

BIG SEEDSHORT WINGLONG WING

STEP 1. Cut along the solid lines only. Fold the dotted lines.

STEP 2. Fold A and B in the opposite directions.

STEP 3. Fold C and D over each other so they overlap.

STEP 4. Fold the bottom up.

A B

C D

A B

C D

A B

C D

A B

C D

Dipterocarpus Seeds

NOTE: For the most accurate results, make sure the angles for ALL the seeds’ wings are the same.

Team Name: Team Name:

Team Name: Team Name:

BigSeed

LongWings

BigSeed

ShortWings

SmallSeed

LongWings

SmallSeed

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RESULTS!

����3��/ 4����'���� ��� '���� ���Ever wondered how a seed travels? If a seed falls and lands too close to its parent tree, it may struggle to get enough sunlight and nutrients to grow. The seeds, or fruits, of some trees are equipped with wings that slow down their fall and allow the wind to carry them far away. Large dipterocarp trees that grow in rainforests have two-winged seeds that spin in the air like a mini-helicopter. Do all seeds fall at the same speed? Do small or big seeds fall more slowly? How does the size of the seed’s wings affect how fast it falls? Does a seed with longer or shorter wings fall more slowly?

(�5�������5�����"��� ����� � �1 Dipterocarpus (How to say it: DIP-taroh-karp-uhs)

Dipterocarp trees are tall hardwood trees that mostly grow in tropical rainforests. The name dipterocarp comes from the Greek words for two-winged fruit. Every few years the trees produce and drop huge loads of seeds, called masting. Seeds that do not grow into new trees are eagerly eaten up by bats, squirrels, and other animals. The wood from dipterocarp trees is used to build houses and make furniture. It is important to harvest the trees in a careful way that does not damage the forest.

!����!����Range: Southeast AsiaHabitat: Tropical rainforestHeight: 100 feet or more

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����3�� �6��What other characteristics might affect a winged seed’s speed? Which seeds travel farther away from the parent tree?

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BIG SEED

YES NO

LONG WINGS

SMALL SEED

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