What Floats Your Boat?. I. Why things float A.Buoyancy: the ability to float 1. Depends on displacement a. how much water an object pushes out of the.

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Presentation transcript:

What Floats Your Boat?

I. Why things float A.Buoyancy: the ability to float 1. Depends on displacement a. how much water an object pushes out of the way b. If it pushes water weighing more than it out of the way, it floats

2. Density: what an object weighs versus how much space it takes up a. calculated by dividing weight by volume b. written as grams/cubic centimeter c. water has a density of 1g/cc

B. Factors that affect buoyancy 1. salinity a. salt water is more dense than fresh water b. its easier to float in salt water

2. temperature a. cold water is more dense than warm water b. its easier to float in cold water