Mixture and solution

Mixture and solution

Multiple Choice

Which set of procedures would be bestto follow when separating a mixture of sand, salt, and water?

• Evaporate the liquid to separate the water. Heat the solid mixture to separate the salt.

• Pour the mixture through a filter to separate the sand. Evaporate the liquid to separate the salt.

• Pour the mixture into a bowl to separate the water. Use a hand lens to separate the salt.

• Heat the mixture on a hot plate to separate the sand. Cool the liquid to separate the salt.

Multiple Choice

A solution is a special kind of mixture. Some substances can dissolve in water; some substances cannot. Which of the following objects will dissolve in a solution water?

• Sugar

• Oil

• Penny

• Marble

Multiple Choice

Sugar cubes are being dissolved in a beaker of water. The sugar will dissolve fasterif which of the following changes is made?

• Use larger sugar cubes

• Stir the mixture

• Freeze the water.

• Replace the beaker

Multiple Choice

A mixture of sand and pebbles is placed in a sieve. The sand passes through the small holes in the sieve, while the pebbles remain in the sieve.

• Size

• Weight

• Color

• Mass

Multiple Choice

For an assignment, Mrs. Thompson has asked students to choose a material that will dissolve in a beaker of water. Which of the following would be the correct material to choose to meet the requirements of the assignment?

• Cement

• Oil

• Metal

• Salt

Multiple Choice

Victor is building a sand castle at the beach and finds that the sand has many small pebbles in it. Which procedure would be BEST for Victor to use to separate the small pebbles from the sand?

• Pour the sand and pebbles through a screen with small holes

• Put the sand in a bucket and stir it for a few seconds

• Allow the sand and pebble mixture to sit out in the hot sun

• Add more sand that has fewer pebbles

Multiple Choice

Hayden added salt to a glass of water. After 10 minutes, the salt was completely dissolved. The time to dissolve may be shortened to 5 minutes by making which of the following changes?

• Using a larger glass

• Replacing the spoon

• Heating the water

• Adding ice to the water

Multiple Choice

Julia has a large collection of red, blue, and green marbles in a bag. She separates the red, blue, and green marbles into three different cups. Julia separated the marbles based on which property?

• Size

• Color

• Weight

• Mass

Multiple Choice

Some materials, when mixed with water, will change properties and dissolve. The rate at which a substance dissolves in water can be altered by which of the following?

• Increase in temperature

• Using a filter

• Allowing it to settle

• Adding ice to the water

Multiple Choice

A mixture of sand and iron fillings are in a bowl. How could the mixture be separated?

• Dissolving in water

• Using a filter

• Heating the mixture

• Using a magnet

Multiple Choice

A mixture of one substance dissolved evenly in another

• Mixture

• Dissolve

• Solution

• Substance

Multiple Choice

Appearances of an object, including mass, magnetism, physical state, relative density, solubility, and the ability to insulate or conduct heat or electricity

• Particle Size

• Mixture

• Dissolve

• Physical Properties

Multiple Choice

Make different without changing what the material is made of, such as cutting, folding, or melting

• Physical Properties

• Physical Change

• Mixture

• Dissolve

Multiple Choice

Particle size

• To break down and spread out evenly in a liquid

• Appearances of an object, including mass, magnetism, physical state, relative density, solubility, and the ability to insulate or conduct heat or electricity

• A mixture of one substance dissolved evenly in another

• Dimensions of grains

Multiple Choice

A student is given a mixture of sand and iron fillings. Which tool could be used to separate the mixture?

• hot plate

• hand lens

• sieve

• magnet

Multiple Choice

A student mixed 5 mL of salt with 100 mL of water. The salt—

• dissolved

• floated

• sank

• evaporated

Multiple Choice

Which of the following is a mixture, but not a solution?

• vanilla ice cream

• salad

• lemonade

• sugar water

Multiple Choice

Which is the quickest way to separate a mixture of marbles and toothpicks?

• marbles

• collecting net

• sieve

• water

Multiple Choice

To break down and spread out evenly in a liquid

• Dissolve

• Physical Change

• Physial Properties

• Mixture

Multiple Choice

Substance

• Dimensions of grains

• Make different without changing what the material is made of, such as cutting, folding, or melting

• A single part of a mixture or a solution

• A mixture of one substance dissolved evenly in another

Multiple Choice

Which of the following is a solution?

• Saltwater

• marbles

• Trailmix

• Salad

Multiple Choice

A combination of two or more substances where each keeps its own properties and both can be easily separated

• Mixture

• Particle Size

• Physical Properties

• Physical Change

Multiple Choice

Substance

• Dimensions of grains

• Make different without changing what the material is made of, such as cutting, folding, or melting

• A single part of a mixture or a solution

• A mixture of one substance dissolved evenly in another