Science Buddies: "Ask an Expert"

has anyone tried to do the centripetal force experiment with the marble in the jello? my daughter tried it but the marble did not move. looking for advice on what to try next.

Hello and welcome to the forums:

This sounds like a fun (and tasty) experiment. I noticed that the procedure states:

If your marbles will not move, then try the experiment again, making the Jello using more water so it will be less viscous.

You can also try to swing the marbles in the cups harder. I'm unclear from the procedure whether you should swing the cups around your head parallel to the floor or in a loop perpendicular to the floor. You might try the opposite of whichever you've done so far. You also might try this experiment with 'cold' Jello (just out of the refrigerator) and with warm Jello (which has been at room temperature for more than 30 minutes.)

Let us know what you find out!
Keith