DensityDensity. Density: The mass per unit volume of a material. g/mL Density describes how tightly packed a substances molecules are.

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Which do you think would have the greater volume and mass? Why?

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Presentation transcript:

DensityDensity

Density: The mass per unit volume of a material. g/mL Density describes how tightly packed a substances molecules are.

Density formula: D=M/V D= Density M= Mass (g) V= Volume (mL)

To find mass: Use a digital scale (Grams) To find volume: Use water displacement (mL)

Water Displacement Process If you have an object high in mass but displaces little water, then the object will sink in water. Example = Penny

Water Displacement Process If you have an object low in mass but displaces a lot of water, then the object will float in water. Example = Marshmallow

4 Fun Facts 1. Water has the density of 1.0

4 Fun Facts 2. All matter has a density greater than zero.

4 Fun Facts 3. If an object has a density < 1.0 then the object will float.

4 Fun Facts 4. If an object has a density > 1.0 then the object will sink.

Good to Know If an object has the density of very close to 1.0 such as , then the object will suspend in water.

Density Examples Sugar 1.6 Salt 2.2 Gold 19.3 Marshmallow 0.2 Oil 0.09 Cork 0.24 Penny 8.9

That was amazing!