Chemistry: Separating Mixtures

A student mixes sand and water in a cup. Which method should the student use to separate the sand from the water, and why?

A cup contains salt water. The student wants to get the salt back. Which method should the student use?

A mixture contains iron filings and sand. Which tool can separate the iron filings from the sand?

Circle the mixture that could be separated by filtering: salt dissolved in water, gravel mixed with water, or sugar dissolved in tea. Explain your choice.

A student pours muddy water through a filter. The water that comes out is clearer, but it is still a little brown. What does this show about filtering?

A mixture has paper clips, rice, and salt. Which material can be removed first using a magnet?

After removing the paper clips from a mixture of paper clips, rice, and salt, how could a student separate the rice from the salt?

A student stirs sugar into warm water until the sugar disappears. Can the sugar be removed by a paper filter? Explain why or why not.

A teacher places a dish of salt water near a sunny window for several days. What will happen to the water and the salt?

Which separation method depends on a material being attracted to a magnet: filtering, evaporation, or magnetism?

A mixture contains salt, sand, and iron filings. Write the best order of steps to separate all three materials.

A student wants to separate a mixture of small plastic beads and water. Would evaporation be the best first method? Explain your answer.

A magnet is held near a mixture of copper pennies, iron nails, and dry beans. Which items will the magnet most likely pick up?

Why is it important to use a container or dish when evaporating salt water to get the salt back?

A student has three mixtures: sand and water, salt water, and iron filings mixed with flour. Match each mixture to the best separation method.