 |
|
|||
 |
How Hot Air Balloons Work http://travel.howstuffworks.com/hot-air-balloon1.htm http://travel.howstuffworks.com/hot-air-balloon2.htm
Activities:
1. Compare and contrast a Hot Air Balloon with an Airplane. 2. How is the concept of density related to hot air ballooning? 3. Why doesn't the air escape from the hole on the bottom of the envelope? 4. Why is the basket made out of wicker and not of other materials like wood, plastic, or metal? 5. What uses can you find for a hot air balloon? 6. What are the main parts of a hot air balloon? 7. What motives people have to fly hot air balloons? 8. How would you make a hot air balloon safer? 9. Suppose you could fly a hot air balloon around the world, where would you like to go? Why? 10. Based on what you know about hot air balloon, how would you rate their safety?
*Buoyancy: a) The tendency or capacity to remain afloat in a liquid or rise in air or gas. b) The upward force that a fluid exerts on an object less dense than itself.
Suggested links: http://alex.edfac.usyd.edu.au/BLP/websites/Machan/hotair.htm
Photo by Captain Carl Baum
Bonus: Create a unique design of a Hot Air Balloon, and write a brief expository paragraph about them.
|
|||
|
|
||||
