red
the reason things float or sink is because _____________
water is heavy
true/false - the volume of displaced water equals the space created by the boat in the mold
true
things sink until they ___________
float
The pen cap sinks b/c _______________________________________________________________________________________.
It fills with water/buoyancy decreases (it displaces less water than it weighs)
Hot air balloons float in _______ not water b/c they have _________
1. air
2. buoyancy
the water displaced weights the same as __________
we do
The _____ makes a difference on it if it sinks or floats
shape
The tennis ball that is cut in half floats higher in the water b/c it doesn't _________ as much as the whole tennis ball
weigh
Fish fill their ________________ with oxygen to control how deep they swim
swim bladders
Any object will displace an amount of water that is the same as _____________
its weight
when water is pushed out of the way it is said to be _________
displaced
the clay boat and the ball of clay displaced the _____________ of water
same amount
__________ discovered he could figure how much volume objects had if he could measure the amount of water they displaced when they sank
Archimedes
a rock is ____________ buoyant, while a piece of wood is ______________ buoyant.
1. negatively
2. positively
what happened to the water level in the dunk tank of science when Bill, jumped in?
it went up
boats that are made of stuff that sink will float if they have the right _________
shape
__________ is what keeps a surfboard afloat
Buoyancy
____________ is the latin word for "somewhere in between"
Neutral
true/false - the mass of the displaced water balances the boat
true
things displace as much water as they _________
weigh
when thrown into the water, Bill ________
floats
A BC vest can be filled with ______ to displace more water and become more ____________
1. air
2. buoyant