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Education
– Primary
New Holiday
Activites!
Word Search (pdf
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How Do Some
Animals Walk On Water?
Some Insects like the water
strider, can walk on water. The shape and weight of their
body helps them walk on water but so does the water itself.
The surface of the water acts a bit like a skin and stops
the insects from sinking below it. This property of water
is called surface tension
ACTIVITY
- Colouring-In Competition
Colour-in the above images and send them to:
Suzzanne Gray
PO Box 99
Moruya 2537
ACTIVITY
- Make your own Water Strider
.
What You Need
Pencils
Aluminium Foil Sheet
Magnifying Glass
A Drinking Straw
A Container of Water
What To Do
- Use the picture of the water
strider to trace and cut out a model of the insect from
the foil.
- The legs should all be the
same length and the model should be cut out in one piece.
- Bend the legs of the strider
a little so that there is a right angle bend in each one.
Now you can place your strider
on the water; hopefully it does not sink. Look closely at
the water surface around the legs of the strider. Blow some
bubbles into the water with the straw and see what happens.
Questions
- Would you expect to find
water striders on fast flowing water?
- What other water bugs can
walk on water? (Snails can actually move along the water
surface upside down!)
Adapted from the Bug Book pg
20
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