Density, Weight, Mass, and Volume

Weight versus MassAre they related?How are they different?

A beach ball floating in water and a person floating in water both act like they are weightless. Is there a difference in what it takes to push one versus the other. Why/ why not?

Does weight make something sink?Which weighs more a quarter or a pontoon

boat?Why does the boat float but the quarter

sinks?What is different about the two?

Does volume make something sink?Which has more volume – a cork or a brick?

Which one sinks in water?Which has more volume a balloon or a

quarter? Which one sinks in water?

Problem: The ooze is floating on the top and doesn’t come down.Adding more wax will make the ooze heavier.

Will this fix the problem? Why/why not

What fixes this problem and how does it do it?

A person works out regularly and notices that their clothing is more loose but they weigh the same. How would you explain this to them?

A person swims in salt water near Salt Lake city. They find it much easier to float than normal. How would you explain this to them?

A person in quicksand is told not to take deep breaths. Even though they are afraid. How would you explain why they should take shallow breaths?