Sunday, July 12, 2009

Wonderful Waterwheels

No comments: Links to this post
Sorry for the delay in posting solutions, but here they are:

Billy did a magnificent job with his waterwheel. You can read about it here. Congratulations!



video

Zee also created a wonderful waterwheel. You can read more about it here. Congratulations! This was a hard one!

Thursday, July 9, 2009

Week Forty-Six -- Hovercrafts

No comments: Links to this post
Can you create a hovercraft that will hover in the air without crashing? Build it using some/all of this:

tape
3 rubberbands
3 sheets of paper
3 balloons
3 straws
3 paperclips
3 pennies
3 feet of string

Test it by placing a blowdryer (or fan) on the ground and pointing it straight up. Send videos or pics! Good luck!

Thursday, July 2, 2009

Week Forty-Five -- Working with Water

1 comment: Links to this post
Using the following materials, construct a water wheel:

a long dowel
a cardboard tube or a two liter bottle or a can
8 index cards
a sharpie
string
tape

You may use scissors in construction but not the solution.

When you are done. Test it by pouring water on it See if it turns. Attach it to a boat and see if it will pull the boat along when you pour water on it.

Also, check out some of the new articles and links at the right side of our site.