Action Plan Density (VIII). By Mrs. Nudrat Iqbal Syndicate -3 DA SKBZ College. Contents. Introduction Motivational questions Demonstration and lecture Activity Mathematical Expression Assessment Assignment Links/ references. Introduction. Recap on definitions of volume and mass
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By Mrs. Nudrat Iqbal
DA SKBZ College
Reasoning, that affect of density on floating things?
10g of iron block will sink in water? How can you make it less dense?
10 nails of 1g each will sink in water but a foil of same mass (10g) will float. Explain it?
Take aluminum of same mass and form it into various shapes (sphere, cuboids, laminar. Test which one will float?
Floating and sinking of Al foil and then lump of same foil
Discussion on the reasons on floating tons of metallic structure I.e. ships
Take a raw egg. Immerse it in water. It will sink to the bottom. Ask the students to predict the condition in which it can float.
The egg can float if the water in the beaker becomes denser. Add about ten teaspoons of salt to 175 mL of water ,stir well and immerse the egg. The egg will float.
Discuss and evaluate the reason.
Written quiz and numerical problems
Define density with its SI units.
Calculate density of 10cm3 wooden block whose mass is 40g.