Mixtures and Solutions

A combination of 2 or more ingredients where each keep their own physical properties and can be easily separated.

• solution
• dissolve
• mixture
• saltwater

One of the substances that make up a mixture. 

• physical property
• ingredient
• solution
• dissolve

What tool can you use to separate a mixture of sand and water?

• hands
• filter
• tweezers
• craft stick

What tool can you use to separate a mixture of rocks and sand the fastest? 

• sieve
• tweezers
• magnet
• hands

A glass beaker contains 100ml of water.  5g of salt is stirred into the beaker of water.  Which item should be used to separate this solution?

• triple beam balance
• paper filter
• hot plate
• spring scale

You have the following solids in a lab: salt, sand, lemonade powder, and pepper.  Which solids will dissolve in water to create a solution?

• pepper, sand, and salt
• salt, lemonade powder, and sand
• salt and lemonade powder
• pepper and sand

Tags

NGSS.MS-PS1-2

Which example below describes a simple mixture where the ingredients maintain their physical properties?

• bucket of saltwater and sand
• peanuts, raisins, and chocolate pieces
• sugar and water
• all of the above

A science class performed an investigation by evaporating a solution containing 10g of salt and 50ml of water.  How much salt would you expect to find in the cup at the end of the investigation?

• 60g
• 50g
• 10g
• 5g

Tags

NGSS.MS-PS1-2

Which of the following, if added to water, will change shape?

• salt
• sand
• wood
• glass

When you separate a mixture with water and one ingredient sinks and one ingredient floats the property you use is -

• evaporation
• density
• filtration
• magnetism