Conservation of Matter

Kelly has two cubes of sugar and decides to add them to a glass of water. The mass of the sugar cubes is 6.0 grams total. And the mass of the water, glass, and straw is 520 grams total. Once the sugar dissolves in the water, what will the total mass of Kelly's drink be (including the glass and straw)?

• 83 grams

• 514 grams

• 526 grams

• 580 grams

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

200 g of liquid water is frozen in an ice cube tray. What is the total mass of all of the ice cubes?

• More than 200 g

• Less than 200 g

• Exactly 200 g

Tags

NGSS.MS-PS1-5

Cayman left an ice cube in a cup. After an hour, the ice had changed into liquid water. The liquid water has the same _______ as the solid ice cube.

• temperature

• mass

• shape

• state of matter

Tags

NGSS.MS-PS1-4

The picture below shows a glass of water with ice cubes floating in it. The glass is at room temperature and the ice is slowly melting. The mass of the glass will be the same after the ice melts as it was before the ice melted. Which of these best describes why this is true?

• Matter is neither lost nor gained when ice melts.

• The particles that make up the substance get bigger as matter is lost.

• The particles that make up the substance get smaller as matter is added.

• Matter is converted into energy as the ice melts.

Tags

NGSS.MS-PS1-5

Kyleigh is drawing with a blue pencil when she accidentally breaks it. Which of the following statements about the pencil is true?

• The total mass of the pencil increased when it was broken.

• The total mass of the pencil decreased when it was broken.

• The total mass of the pencil did not change when it was broken.

• The pencil did not undergo a physical change when it was broken.

Aden forgot to put the butter away after making breakfast. When he returned to the kitchen hours later, he noticed that the butter had mostly melted. Which property of the melted butter should be the same as the stick of solid butter?

• state of matter

• temperature

• mass

• volume

Tags

NGSS.MS-PS1-4

Miguel has some sugar cubes and a cup of hot water. Miguel knows that the water and the sugar cubes are types of matter, so they are both made up of tiny particles. Miguel puts a few of the sugar cubes into the hot water. The sugar cubes dissolve and can no longer be seen. What is now true about the sugar?

• The sugar is still made up of the same tiny particles as it was before it dissolved.

• The sugar is no longer made up of particles because all of the particles dissolved in the water.

• The sugar is made up of particles, but the particles disappeared when they dissolved.

• The sugar is no longer made up of particles because the dissolved sugar does not take up any space.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

NGSS.MS-PS1-1

Caiden boiled 15 grams of water. If all of the water changed into a gas, what would be the mass of the steam?

• 0 g

• 5 g

• 10 g

• 15 g

Tags

NGSS.MS-PS1-5

Jill has a mixture of sand and iron filings. The mass of the mixture is 250 g. Jill uses a magnet to separate the two substances. Then, she measures the mass of the sand as 150 g. What should be the mass of the iron filings?

• 100 g

• 150 g

• 200 g

• 250 g

Tags

NGSS.MS-PS1-5

Lynckon froze 15 grams of water. If all of the water changed into a solid, what would be the mass of the ice?

• 0 g

• 5 g

• 10 g

• 15 g

Tags

NGSS.MS-PS1-5