Unit 2 Test

Mary mixed 100 mL of water with 12 ML of sugar in a bowl. She left the bowl with the sugar in a bowl. She left the bowl with the sugar and water mixture outdoors. After a week, she noticed crystals and a small amount of liquid at the bottom of the bowl. Which sentence describes what happened in the bowl?

• There was one new substance formed.

• There were no new substances formed.

• There were two new substances formed.

• There were many new substances formed.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A glass is filled half full of water and half full of ice. The weight of the ice and water is 250 milligrams. Which sentence describes the weight of the water when the ice melts in the glass?

• It will weigh 250 milligrams.

• It will weigh a little less than 250 milligrams.

• It will weigh twice as much as 250 milligrams.

• It will weigh a little more than 250 milligrams.

Tags

NGSS.MS-PS1-5

James blows up a balloon as a demonstration in class. Which sentence explains what he is trying to show his class?

• Air has no weight, which will cause the balloon to float.

• Air is made of very large particles that are invisible.

• Air is not made of matter and will have no effect on the balloon.

• Air is made of particles that are very small and cannot be seen.

Danea has a mixture of two solids. One is white and is tiny crystals. The other solid is black and is tiny flakes. She pours water on them. The white solid disappears, and the black solid floats to the top of the water. Which two materials did Danea most likely mix together?

• salt and pepper

• milk and iron fillings

• white and black sand

• sugar and powdered drink mix

Tags

NGSS.MS-PS1-2

Tila mixes 15 mL of oil with 5 mL of vinegar to make salad dressing. What is the volume of the salad dressing?

• 5

• 10

• 15

• 20

Tania weights a piece of wood. It weighs 25 grams. Her mother puts a small steel box and burns it for five minutes. Tania notices there is still some wood and a pile of ash left over after burning. Tania weighs the wood again after it has cooled. It now weighs 15 grams. What is the weight of the wood?

• 25 grams

• 15 grams

• 10 grams

• 5 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Tania weights a piece of wood. It weighs 25 grams. Her mother puts a small steel box and burns it for five minutes. Tania notices there is still some wood and a pile of ash left over after burning. Tania weighs the wood again after it has cooled. It now weighs 15 grams. What is the weight of the burned wood?

• 25 grams

• 20 grams

• 15 grams

• 10 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Tania weights a piece of wood. It weighs 25 grams. Her mother puts a small steel box and burns it for five minutes. Tania notices there is still some wood and a pile of ash left over after burning. Tania weighs the wood again after it has cooled. It now weighs 15 grams. What is the weight of the ash?

• 25 grams

• 20 grams

• 15 grams

• 10 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Natasha puts 2 ounces of hot chocolate powder into 8 ounces of water. She mixes them together. Natasha heats the chocolate mixture for one minute. What phrases describe the mixture, after mixing.

• weight increases

• weight stays the same

• Weight of the hot chocolate is 1 ounce.

• weight of the water is 9 ounces

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Natasha puts 2 ounces of hot chocolate powder into 8 ounces of water. She mixes them together. Natasha heats the chocolate mixture for one minute. What phrases describe the mixture, after mixing.

• weight increases

• weight decreases

• weight is 10 ounces

• weight of the hot chocolate is 1 ounce.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5