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WorksheetsScience 6 Dissolving and Solution
Total questions: 20
Worksheet time: 53mins
When a substance dissolves, the particles are ______
collected only at the top of the solution
collected only on the surface of the solution
mixed unevenly through the solution
mixed evenly throughout the solution
Salt is mixed with water. Which one is correct?
Salt is the solvent
Water is the solute
Water is the solvent
Salt is a solution
An example of insoluble substance is ....
salt
sugar
milk powder
flour
Look at the diagram. In this diagram, the red dots represent ...
none of these
The sand in this water is . . . .
soluble
insoluble
Which of the following will not increase the rate that a sugar cube dissolves?
crushing up the sugar cube
stirring the water with sugar cube
In a solution, what is the substance that does the dissolving?
solute
suspension
solvent
emulsion
Which of the following is an example of a solute: salt, water, or air?
oil
salt
sugar
vinegar
Which one shows dissolving process?
coffe powder and sugar
coffe powder and hot water
water and oil
salt and sand
Substance that cannot be dissolved by another substance called as ...
solvent
soluble
solute
insoluble
Zahra wants to make a solution, she has a spoonful of baking soda powder, which of the following ingredients must Zahra mix to make a solution?
more salt
water
sand
rocks
Look at the following picture.
A powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?
freeze the mixture
store the mixture in a dark place
add more powder to the liquid
stir the powder in the liquid
What will happen when we dissolve some sand in the water?
the solid might be sink to the bottom
some solid seem to disappear when mixed
the solid might make the liquid cloudy
the solid will float on the surface of water
What will happen when we dissolve some flour in the water?
the solid might be sink to the bottom
the solid might make the liquid go cloudy
some solid seem to disappear when mixed
the liquid will turn white
Zhakwan crushes some coffee beans into a powder and adds boiling water.
Why does the water turn brown in stage 2?
because coffe is solvent
because water as a solute
some coffe dissolves
because Zhakwan boiling the water
Which letter in the diagram represents a solution?
A
B
C
None of these
Which one will dissolve faster in the hot water?
fine sugar
sugar cubes
coarse sugar
lump or rock sugar
Jackson is making dinner and is trying to dissolve salt into a pot of water.
The salt is dissolving slowly.
What should Jackson do to speed up the rate of dissolving?
He should put larger salt particles in the water.
He should heat the water to a higher temperature.
He should completely stop stirring the pot of water.
He should slow down the speed he is stirring the pot.
Stirring the solution ...
decreases the rate of solubility
doesn't change the rate of solubility
increases the rate of solubility
None of the above
Why do sugar particles dissolve faster in hot water?
water particles move slow
water particles move fast
water particles settle down
water particles stay on top
