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WorksheetsUnit 1 CBA Review
Total questions: 10
Worksheet time: 7mins
What statement below is true of the beaker illustrated in the diagram?
The object has the lowest density.
Water is more dense than oil.
The object is more dense than oil.
Oil has the highest density.
A tablespoon of a substance is added to warm water and stirred. The result was that the substance could no longer be seen. We can conclude from the results that the substance –
is less dense than water
heated the water
dissolved in the water
flavored the water
What tool would best help you sort iron bolts from aluminum bolts?
The metal cube and the plastic cube shown are the same size. Compared with the plastic cube, the metal cube is -
denser
lighter in weight
a poorer conductor
more buoyant
Which of these would be the best choice if you wanted a good conductor of electricity?
glass tubing
copper tubing
plastic tubing
clay tubing
A root beer float has ice cream, root beer, and carbonation. A root beer is an example of -
a stable mixture
a good conductor
a solid, a liquid, and a gas
several different kinds of liquids
Maryssa put butter on each spoon. Then she filled the cup with hot water. Why did the butter on the metal spoon melt first?
Water soaks into wood but not metal.
The metal spoon is shorter than the wooden spoon.
Heat moves through metal better than through wood.
Butter sticks to wood but not to metal.
Which of these is true about a solution?
A solution is always a liquid.
The substances in a solution cannot be separated.
A solution is always a mixture.
Both substances in a solution are easy to see.
What physical property of salt changes when it is dissolved in water?
color
state of matter
taste
size
How could you most easily separate a mixture of salt and pepper?
Put the mixture in water, stir, and strain the water through a coffee filter.
Pour the salt and pepper through a sieve.
Heat the salt and pepper.
Pick out the grains of salt.
