Solubility

If a student would like to remove gravel from water, which method could they use to separate the mixture?

• Boil the mixture and evaporate the gravel

• Pass a magnet over the mixture

• Pour the mixture through a paper filter

• Add sand to the mixture

A mixture of water and metal beads is placed in a glass container. What would happen if you pass a magnet under the container?

• The metal beads maintain their physical property of magnetism, and will move with the magnet.

• The beads will have less volume when the magnet is present.

• The water and beads form a solution with mixed with a magnet.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A student begins an experiment by pouring 100ml water into a clear plastic beaker. The student then adds 30ml of oil to the beaker. The student observes that the oil rises to the top of the water. What physical property of matter supports this observation?

• Temperature

• Texture

• Magnetism

• Density

Which statement best describes a mixture?

• One substance can be separated from the other.

• One substance dissolves into another.

• Both substances can evaporate.

• Both substances mix evenly.

During an experiment, a student used a wire mesh to separate water and beads. Which of these mixtures could the student also separate using this method?

• Salt and water

• Water and lemon juice

• Sand and rocks

• Coins (dimes, nickels and pennies)

Which of the following is a mixture?

• Sugar cube

• Salt

• Salt water

• Warm water

Which of these describes properties of a mixture?

• Mixtures are combinations of different types of matter

• Mixtures can only be separated using evaporation

• The formation of a mixture involves burning

• Mixtures cannot be separated

What would be the best way to separate a mixture of salt and water?

• pouring the mixture through a filter

• using a magnet to extract the salt

• boiling the mixture until the water evaporates

• adding a colored dye to the mixture

Tags

NGSS.MS-PS1-4

A student has a mixture of pepper and water. Which property allows the student to separate the mixture using a paper filter?

• volume

• conductivity

• magnetism

• state of matter

Which of the following mixtures contains ingredients that can be easily separated?

• soda water

• ocean water

• bread

• fruit salad