So earlier this year we started Apologia’s Zoology 1, Flying Creatures of the Fifth Day. The first lesson was quite long, covering animal classification, air pressure (relating to wing shape), instinct, extinction, etc. Mid-lesson was a ‘Try This!’ section that had us looking at how air pressure works. In the picture below, Skeeterbug is blowing air (at just the right angle) over the top of the straw that is in the glass of water. This causes decreased air pressure in the blue straw which makes water squirt up out of it. We were pleased when it worked!
Then we made gliders, we used cereal boxes out of the recycle bin. One was supposed to have a long, narrow strip for wings and the other a shorter, wider strip.
Then off for testing which one would fly further.
Lots of throwing and measuring.
Everyone had a turn or two or three.
Ladybug eventually switched to recording the results for us. She was very pleased with her role. 🙂
We ended with the ‘wrong’ result. The glider with the long, narrow wings were supposed to go further but that’s not what happened for us. A slight breeze may have affected things. And arms that don’t quite know how to throw with the same strength every time. 😉