Balancing Act

Rane‚ IL | Balancing Act
I got it right!!!!!!!!

sabina‚ DC | Balancing Act
A BALENCING ACT IT‚S NOT THAT HARD BUT IT‚S GOOD TO TEACH THE PEOPLE WHO DON‚T KNOW‚ I WOULD LOVE TO TEACH A PERSON WHO DOESEN‚T KNOW AND THEY WILL KNOW SO QUICKLY!

agatha | Balancing Act
when i tried this experiment the hammer fell off the table onto my toe every time. This experiment dosen't work

Jessica, SA | Balancing Act
Out by the handle

Caitlyn, IL | Balancing Act
to day in school i tride to balace a pencel on a wire/2 close pins pociolstick 2 inch pice of tape i tried and gusse what i got it

Taylor, MI | Balancing Act
My results were that even though the hammer weighs a lot it is all in the gravitational hold of Earth. If you take something that is bigger and weighs more than something that is still heavy then most likely the bigger object will be able to hold the smaller object. That is my results.

Hannah, BC | Balancing Act
The heaviest part of the hammer was under the table.

Michael, WA | Balancing act
on my first try the hammer was a rocket then the second try it worked

Jillian, MN | Balancing Act
Have you ever tried to lean back standing up and then run. It is hard isn't it. I challenge you to try to find out why.

Namra, NY | Balancing act
dear dftv I really want to be on tv in science at school we are learning to balance things . did you know you could balanc a paper on a littlie pencel. hope you get my letter I cry when you go love your biggest fann,Namra

Eva | Balancing act
Our 3rd grade class tried the experiment as a class and first found that you need rubber bands that are pretty sturdy to get this to work. We had flimsy ones that kept breaking or that weren't rigid enough to balance the hammer against the ruler and table. We also found that you need to have a ruler that is wooden. Our plastic ones were too flimsy and either broke or weren't sturdy enough to balance the hammer. So a lot of our experiment was about figuring out the directions and which materials would work. After we got the right materials, we were able to balance the hammer but we disagree in our class as to where the center of gravity is.

Even after your sneak peak, 2 kids think the COG is out by the handle, 5 think it is above the table top, and 12 think it is under the table top. Could you please help us understand which answer is right?

Thanks, Eva

DragonflyTV | Balancing act response
Hello Eva, Well it sounds like you made the most out of this investigation! You studied things more closely than many people do. Well Done! If you got the hammer to hang under the table finally, then the COG is located somewhere underneath the table top, that's for certain. If you simply set the hammer on the tabletop, then the COG is above the table, of course.