Mixtures

Students accidentally dropped a mixture of sand and iron filings into a cup of water. How could they quickly separate these three substances?

• Pour the mixture into a funnel with a filter.

• Put the mixture on a hot plate to evaporate the water.

• Pour the mixture through a filter, then use a magnet.

A combination of rocks and water is an example of

• A mixture

• A solution

• Dissolving

A student made a mixture of equal parts salt and pepper. The salt grains were the same size as the pepper grains. What should the student do to most easily separate the pepper grains from the salt?

• Use a pair of tweezers to remove each grain of pepper

• Run a small magnet through the mixture to attract the pepper

• Put the mixture in water and filter the pepper out of the water

• Use a strainer with a fine wire screen to remove the pepper

A student is given a beaker containing gravel and water. Which of these ways could the student NOT use to separate the gravel from the water? (5.5C)

• Boil the mixture to evaporate water.

• Pass a magnet over the mixture.

• Pour the mixture through a paper filter.

• Use tweezers

Water dyed with food coloring is what type of mixture?

• homogeneous mixture

• heterogeneous mixture

Tags

mixtures

Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?

• A solution

• A colloid

• A suspension

• A compound

Sand floats in water, but most of the sand has settled at the bottom. Which type of mixture is classified?

• Solution

• Colloid

• Suspension

• Compound

Lucky Charms

• Heterogeneous

• Homogeneous

blue berry muffin

• heterogeneous mixture

• homogeneous mixture

A mixture in which different materials can be distinguished easily.

• homogeneous mixture

• heterogeneous mixture

• absolute zero

• carbon