‘How-to’ Experiment: Make an Awesome Bat Center-of-Gravity Wing!
By Jeffrey Bishop
Two cents and a handful of common household supplies — plus our nifty template — and you, too, can make this awesome bat- or more traditional bird-shaped center-of-gravity wing!
Noting that this is not at all a spooky campfire story, it’s nonetheless a cool project that we think will appeal to the same audience as our readership. Plus, making a bat wing is kinda spooky!
This project can be used to partially complete Webelos Scientist requirement 11; indeed, it was inspired by the experiment on page 423 of the current Webelos book.
Click here to download the printable bird- and bat-shaped Center of Gravity Wing Templates.
1. Print and cut out template
2. Trace template onto poster board / card stock
3. Cut out and decorate
4. Affix pennies to wing tips
5. Balance the nose of the bat on your finger, a pencil eraser, the corner of a table or a similar point
7. To learn more, try some of the experiments listed at the end of this post
• This template
• Pencil or pen
• Poster board / card stock
• Tape or glue
• Markers or paint
• Use your first card stock wing as a durable template for others
• Used cereal boxes work great
• Use painter’s tape to test different coin locations before permanently securing them
• Use hot glue or epoxy to secure pennies to wings
• What effect does using a lighter coin have? What effect does using a heavier coin cause?
• How does the location of the coin affect the center of gravity?