Melina and Coco are comparing two samples of matter. They make a chart showing the properties of each sample.

Which property provides the best evidence that both samples are solids rather than liquids?

• Color

• Mass

• Shape

• Volume

Bailey adds 10 grams (g) of salt to a jar of water and 10 g of sand to another jar of water. He places a lid on each jar and shakes the jars for 10 seconds. Then, Bailey allows the jars to sit on a table for five minutes. What should Bailey expect to observe after five minutes?

• 1. Both the salt and the sand dissolved in the water.

• Both the salt and the sand settled to the bottom of the jar.

• The salt settled to the bottom of the jar, and the sand dissolved in the water.

• The salt dissolved in the water, and the sand settled to the bottom of the jar.

Tags

NGSS.MS-PS1-2

One morning, Caiden noticed there were tiny drops of water on the grass as he walked to school. That afternoon, he did not see any drops of water on the grass when he returned home. Which of the following best explains what happened to the drops of water?

• The heat from the air caused the water drops to boil.

• The air cooled the water and caused the drops to freeze.

• The Sun heated the water and caused the drops to evaporate.

• The energy from the Sun caused the water drops to condense.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Sammie stretches a rubber band between her fingers, as shown below. When she plucks the rubber band, it makes a sound.

Which of the following best explains why the rubber band makes a sound when Sammie plucks it?

• It heats the air.

• It vibrates the air.

• It absorbs energy from the air.

• It releases molecules into the air.

Tags

NGSS.MS-PS4-1

Addison uses a bowling ball to demonstrate how energy can cause changes. Which of the following actions would not demonstrate a change caused by Addison applying energy to the ball?

• She holds the bowling ball in both hands.

• She spins the bowling ball with one hand.

• She rolls the bowling ball across the floor.

• She lifts the bowling ball to place it on a shelf.

Tags

NGSS.MS-PS3-5

Electric circuits must be properly connected or electricity will not flow. Which of the following shows a properly connected circuit that would allow electricity to flow and light the bulb?

• 
• 
• 
• 

Bar magnets have a north pole (N) and a south pole (S). Natalia places a bar magnet on three small straws so it can roll. She attempts to make the magnet move by placing different objects in location X. Her setup is shown below.

Which of the following objects should Natalia use to cause the bar magnet to move away from location X ?

• an iron nail

• an aluminum can

• the north end of another bar magnet

• the south end of another bar magnet

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5