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Relative Density-Properties of Matter

Elementary Science lessons on properties of matter-relative density

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1.

Why do some things float and others sink?

Elementary Lessons on Relative Density
Photo by Vicki & Chuck Rogers
2.

Step #1-Engage

Activate background knowledge
3.

Do they float because they are light?

Do only heavy objects sink?
Photo by ms4jah
4.

What do you know about floating

and sinking?
Photo by VickyTH
5.

Misconceptions?

  • Mass is not the same as weight
  • Weight is how strongly the Earth's gravity pulls on the mass of an object
Photo by Hindrik S
6.

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Blanche Herrera