Science 5.5B

The picture shows tools that can be used for separating mixtures.

Which mixture is paired with the best tool for separating the materials?

• Iron filings and sand - Tweezers

• Pebbles and sand - Beaker of water

• Pepper and iron nails - Magnet

• Sand and pepper - Colander

Which of the following mixtures can best be separated using the method shown above?

• Sand and pebbles

• Sugar in water

• Sand in water

• Paper clips and sand

A student made a mixture using white and black marbles. What statement is true about the mixture?

• The mixture will all be the same color

• The mixture will maintain its physical properties

• The mixture will change its state of matter

• The mixture will have less volume

A student stirs 15 grams of each substance listed below into 200 milliliters of water to form four different mixtures. The student then tries to separate the water from each mixture by using a magnet.

Which mixture can the student separate most easily with the magnet?

• Salt and water

• Iron nails and water

• Shampoo and water

• Sand and water

Some ways to separate mixtures are listed below.

A student is given a beaker containing gravel and water. Which of these ways could the students NOT use to separate the gravel from water?

• Boil the mixture to evaporate the water

• Pass a magnet over the mixture

• Pour the mixture through a paper filter

• Use tweezers