G5 Matter

A house made of toy blocks is weighed. It is taken apart and each block weighed separately. If the weight of all the blocks is added, what will it total?

• A little less than the weight of the house.

• The same as the house.

• A little more than the weight of the house.

• It would depend on how large the house was.

Water is boiled in a flask with a balloon over the top. As the water heats, the balloon expands. What has happened to the weight of the flask and balloon in this experiment?

• It has increased as the balloon expands.

• It has decreased as the water boiled away.

• It has stayed the same.

• It is unpredictable because the balloon is flexible.

Tags

NGSS.MS-PS3-4

5 Grams of orange-drink mix is added to 100 grams of water. What would you expect the new solution to weigh?

• 95 grams

• 100 grams

• 105 grams

• 500 grams

How do you know when something is a solid?

• It will pour.

• It takes the shape of the container.

• It cannot be seen easily.

• It will hold its shape.

Tags

NGSS.5-PS1-3

What evidence shows that ice has a physical change when left out in a room.

• It reacts with oxygen in the air.

• It changes to water.

• It is hard and white.

• It is cold to the touch.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Use the data collected above to answer the next two questions.

Which substance had a physical change?

• A

• B

• C

• D

Use the data above to answer this question.

Which of the tests is reversible?

• floating in water

• burning when lighted

• melting when heated

Bread placed in a toaster turns brown then black if left too long. What is needed for this chemical change to take place?

• Heat energy had to be added.

• Heat energy had to be taken away.

• A certain amount of time had to pass.

• The bread had to be taken out of the wrapper.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A student watches an ice cube melt into a puddle of water. Has a chemical reaction taken place?

• Yes, a gas has been given off.

• Yes, the color has changed.

• No, water does not react chemically.

• No, no new substances have formed.

Tags

NGSS.MS-PS1-2

Which of Mark's observations would show that a burning candle is a chemical reaction?

• Back smoke is given off; hot gases are rising.

• The wax starts to melt.

• The candle is white and made of wax and a wick.

• Time passes one minute at a time.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4