Exploration: In your groups, write down your prediction of what will happen to each sphere.

1 pound sphere __________________________________________________

10 pound sphere__________________________________________________

50 pound sphere__________________________________________________

DATA

Draw a picture of what happened to the sphere. Then, circle the word that happened to the sphere.

Object                     Picture                 Reaction                                                                    ________________________________________________________                                                                                                                     

1 pound sphere                                                      sink                     float

10 pound sphere                                                   sink                     float

50 pound sphere                                                   sink                    float

_________________________________________________________

Conclusion:

Why do you think happened to each sphere?

What caused the spheres to sink?

What caused the spheres to float?