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WorksheetsSCIENCE YEAR 3 ( 12.8.2021)
Total questions: 15
Worksheet time: 9mins
What is density?
Density is a measure of mass per volume.
Density is a measure of volume per mass.
Density is a measure of mass.
Density is a measure of volume.
Why doesn't a toy duck sink?
A toy duck more dense than water.
A toy duck is light.
A toy duck less dense than water.
Select the objects sink in water.
Coin
Ping - pong ball
Marble
Soap
Select the objects float in water.
Sponge
Cork
Stone
Wood
Compare the density of coloured water, cooking oil and glycerine. Which is the most dense?
(a)
An object that is (a) dense than water will sink.
An object that is (a) dense than water will float.
How can we sink an orange in water?
Add salt in water.
Peel off orange .
Cut orange into two.
Oil will _________ on the surface of the water as oil is _______dense than the water.
sink , less
float , more
float , less
sink , more
Why sponge float on water?
sponge less dense than water
sponge has a lot of air space.
sponge more dense than water.
Why do objects sink or float in water?
Because their densities are higher or lower than compared to water
Because their densities are using gravity to pull down
Because their densities are heavier or lighter
Because their mass and volumes are equal
A bobber floats on the water because it is....
more dense than the water
less dense than the water
the same density as the water
to show you when you have a bite
Why does the egg not sink or float?
it is more dense than the water
it is less dense than the water
it has the same density as the water
it is light
