Matter Review

Which of the following are solutions? Choose THREE solutions. 

• Hot chocolate

• Gatorade

• Salad

• Water

Which of these actions, on their own, will cause ice to change to water?

• Removing heat from the ice.

• Adding sand to the ice.

• Crushing the ice.

• Adding heat to the ice.

Tags

NGSS.MS-PS1-4

Identify the items listed under Mixtures.

• chocolate chips

• fruit salad

If you mix sand with water and then let the mixture sit, what happens to the total amount of sand and water?

• The total amount of sand and water increases because they combine to form a new substance.

• The total amount of sand and water decreases because some evaporates.

• The total amount of sand and water stays the same because none of it is lost or gained.

• The total amount of sand and water changes because some turns into gas.

Select the correct answer.

A student is identifying mixtures in his science class. Which of the following would NOT be classified as a mixture?

Select the correct answer.

• sand and iron filings

• jar of sand and pebbles

• salt in a saltshaker

• pile of colored pencils

Students measured 500 mL of water into a plastic beaker that had a tight-fitting lid. They recorded the mass of the water in the sealed beaker, and then placed the beaker in the freezer overnight. They observed that the ice had a larger volume than the water, but the mass stayed the same. Which of these is the BEST explanation of these observations?

• Water molecules move away from each other as they freeze causing the volume to increase.

• The amount of energy in the water increases when it is frozen.

• The amount of matter in the water increases when it is frozen.

• The chemical properties of the water change when it is frozen.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following methods is BEST for separating a mixture composed of pieces of

  gravel and sand?

• using filter paper

• stirring the mixture with a spoon

• removing each substance by hand

• pouring the mixture through a sieve

Kayleigh mixes 40 grams of pebbles with 20 grams of sand. She makes this model to show the relationship of the individual substances and the mixture. Which statement BEST explains why the model is correct?

• It shows that there is more sand than pebbles.

• It shows that the mixture has an equal amount of sand and pebbles.

• It shows that sand is lost in making the sand and pebble mixture.

• It shows that matter from the substances is conserved in the mixture.

Tags

NGSS.MS-PS1-5

• The apple’s mass is 10 g

• The apple’s mass is 50 g

• The apple’s mass is 101 g.

• The apple’s mass is 110 g.

Inside a student's pencil bag is an eraser, two pencils, and a highlighter. What is the best description of the materials in the bag?

• mixture

• thermal

• natural resources

• magnetic

Tags

NGSS.2-PS1-1