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Science Craft: Water Striders

How to Make and Test a Water Strider Model

While it is not a high-tech robot, you can design paper insect models that will stand on water.

The two diagrams show the side view of an insect drawn on a folded index card. The cut out model stands on water due to surface tension.

Yes! The Insect Pattern is very crude, but it does have three pairs of legs and three body parts.

Discover for Yourself

1. Fold a 3-by-5-inch index card in half with the long sides together.

2. Use the pattern shown to draw an insect on the folded card. Note that the insect diagram shown has three body parts–a head, thorax, and abdomen. The three pairs of legs are attached to the center body part- the thorax.

3. Cut out the insect, cutting along the red dashed lines, cutting through both layers of paper.

4. The dark dashed lines show where the bottom of each leg is bent.

5. Stand the paper insect  on the surface of  water in a bowl.I must admit that my water strider model is a bit lame. I’d appreciate a better model to display. Send your ideas to   CONTACT JANICE.

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The spoon hanging from the string vibrates when struck and these vibrations are transmitted through the string and the sound is amplified by the plastic cups. ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years. MORE.....

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