Science Mixtures Quiz

To separate alcohol from water in a solution, which one can be boiled off first?

• Water because it is the solvent.

• Alcohol because it floats on top of water.

• Water because it has a higher boiling point.

• Alcohol because it has a higher boiling point.

Which of the following mixtures of solid and liquid is similar to what would happen when powdered juice is combined with water?

• Sugar and Water

• Flower and Water

• Oil and Coffee

• Crayons and Chalks

Why does powdered juice disappear when mixed with hot water?

• The particles of powdered juice are mixed evenly with hot water and settled at the bottom because hot water is soluble.

• The powdered juice particles are evenly combined with the hot water because the molecules of hot water move faster.

• The powdered particles settle down right away because the hot water will eventually turn cold.

• The powdered juice particles spread evenly in water because hot water will react fast.

Anna wants to drink a more concentrated and delicious juice drink. Which of the following ways increases the concentration of a mixture?

• Heat the solute and the solvent until the solvent disappears.

• Adding less solute in the solvent can help the solvent dissolve the solute.

• Adding more solvent to the mixture makes the mixture more concentrated.

• Stirring the solute and solvent allows the portion of the solvent in contact with the solute.

Which of the following makes the chocolate dissolve evenly?

• I only because hot water dissolves solute faster than cold water.

• I, II, and IV because all of them contribute in dissolving any kind of solute at any temperature.

• I. Hot water III. Size of the particles

• I and IV because the bigger the size of the container the faster the solute can dissolve in hot water.

• II. Manner of Stirring IV. Size of the container

Which of the following mixtures is a suspension?

• I. Water and milk III. Water and chocolate powder

• II. Water and sand IV. Water and sugar

Mother wants to get rid of the undesirable odors in the living room. Which of the following colloids can she use to solve her problem?

• Mothball because it removes pests.

• Mayonnaise because it has a foul odor.

• Air freshener because it disperses particles that impart aroma in the air to mask the odor.

• Paint because it does not only beautify but also provides a smooth surface for easy cleaning.

Anna wants to mix the chocolate powder in a glass of cold water. What kind of mixture will occur?

• Homogeneous mixture.

• Heterogeneous mixture

• Uniform mixture

• Solid Mixture

Which of the following pairs is an example of the combination of solid materials?

• Bronze and Steel

• Water and Oil

• Sand and Stone

• Coffee Granules and Powdered milk

Your older brother asked you to clean his table’s drawer, and you found out that there were needles scattered in it. What will you do to remove it quickly?

• Use a tong to remove it.

• Use a strainer to remove it.

• Use decantation to remove it.

• Use a magnet to remove it.