Mixtures, Solutions, and Conservation of Matter

A mixture with one substance spread out so evenly in another substance that you cannot tell the two substances apart is called a:

• Substance

• Mixture

• Solution

• Sift/Sieve

A part of a mixture is called a:

• Substance

• Mixture

• Solution

• Sift/Sieve

To form a solution with another substance is to:

• Substance

• Mixture

• Solution

• Dissolve

A property that can be observed, measured, or changed is called a:

• Substance

• Mixture

• Solution

• Physical Property

A tool used to separate small solid particles from large solid objects is called a:

• Substance

• Mixture

• Solution

• Sift/Sieve

Which items will keep their properties if mixed with water?

• The penny and the eraser

• None of them

• All of them

• Only the metal items

Tags

NGSS.MS-PS1-2

Sofia mixed a cup of water that had a mass of 200 grams with 25 grams of sugar, and stirred it. Eventually the sugar dissolved. What do we know will happen to the mass after it is mixed?

• The mass will increase.

• The mass will decrease.

• The mass will stay the same.

• The mass will double.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Sofia mixed a cup of water that had a mass of 200 grams with 25 grams of sugar, and stirred it. Eventually the sugar dissolved. If Sofia then heated this solution, until all the water was gone, how much sugar would be left behind?

• No sugar will be left, the sugar evaporated with the water.

• 125 grams of sugar, because that is how much sugar water we had.

• 25 grams of sugar, because that is how much sugar there was originally.

• 200 grams of sugar, because that is the mass of the water.

Tags

NGSS.MS-PS1-5

True or False: ALL solutions are mixtures, but not all mixtures are solutions.

• True

• False

What is the process called when a solid becomes incorporated into a liquid to form a solution?

• Melting

• Dissolving

• Freezing

• Boiling