Project activities



What you need?

coloured paper, scissors, felt pens, glue, a wide vessel with water

What we do?

Cut a paper square about 15 cm x 15 cm.

Fold it in half twice.

Draw a petal outside the folded corner.

Cut around it to create the petals (or leaves).

Unfold the paper. Fold the tip of each petal up to the middle—where the paper folds intersect.

If you want to have a beetle, draw a oval body on another paper, add six little legs and then cut.

Cut two wings and two little eyes—out of a differently coloured paper, and paste them to the body.

Place the beetle inside the flower. (You can draw various creatures that hide inside the flower or leaf, such as a little frog on a leaf, a butterfly on a flower, etc.).

Bend the flower petals.

Place the flower (or leaf) in a wide bowl filled with water.

What happens?

Fashion flowers and leaves out of different types of paper (cardboard, newspaper) and let them float. You’ll notice that some open sooner than others.

Results and conclusion:
The paper is level when dry. As the paper fibers absorb water, they swell and push the paper outwards, so the petals open.
What do you think happens to the leaves of a real plant when it receives no water?
Does the appearance of the leaves change when the plant gets enough water?

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Graphical weather data (2011 semester 1)
Long-term mean precipitation by month 

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