Properties of Matter Review

Air particles are making these windmills spin. Why can you not see them?

• A. It is a clear day
• B. The particles are too small to see
• C. The particles moving too fast
• D. There are no particles to be seen. Nothing is there

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NGSS.MS-ESS2-6

Mr Conway’s water bottles each weighed 1150 grams before his friend put salt in one of them. How much did the bottle weigh after he poured 45 grams of salt in it?

• A. 1105 grams

• B. 1195 grams

• C. It weighed the same because the salt dissolved
• D. 980 grams

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

A family is making chicken noodle soup. The pot weighs 1000 grams. They add 600 grams of water, 150 grams of chicken, 100 grams of noodles and 60 grams of carrots to the pot . They forgot to weigh the ingredients before they put them in the pot. How can we find the total weight of only the ingredients now?

• A. The family cannot get that weight now it is too late

• B. Weigh the full pot and subtract the weight of the pot from the total weight
• C. Subtract the weight of the mushrooms from the total weight
• D. None of the above

If 100 grams of water is first melted, then poured into molds and frozen back to a solid. What will be the final weight of the water?

• A. Less than 100 grams, since frozen things get smaller
• B. More than 100 grams, since heating something makes it expand
• C. 100 grams
• D. None of the above

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What types of properties can be used to identify materials?

• A. Physical
• B. Astronomical
• C. Gravitational
• D. None of the Above

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NGSS.MS-PS1-2

A marshmellow melting and then catching on fire. Was this a physical change or a chemical change?

• A. Chemical change. New substances were formed when the marshmallow caught fire.
• B. Physical change. The marshmallow got hot and its surface started to melt.
• C. It was both because it melted first and then caught fire.
• D. None of the above

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Miss Galante’s class is doing and experiment. She put some vinegar in a bottle and then put some baking soda in a balloon. She put the balloon over the bottle and then held up the balloon, so the powder fell into the vinegar. The mixture began to bubble and after a few seconds, the experiment looked like the below picture. What happened in the bottle?

• A. A physical change took place
• B. A chemical change happened

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

A firecracker explodes and a nail rusts in the ground. What type of changes happened here?

• A. The firecracker was a chemical change because it happened so fast and produced new substances when it exploded.
• B. The nail was a physical change because it took days to start rusting.
• C. Both were physical changes because the firecracker blew apart into pieces and the nail rusted slowly
• D. Both were chemical changes because new substances were made by the firecracker exploding and the rust on the nail was also a new substance.

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_____ have molecules that are packed together and hardly move.

• solids

• liquids

• gases

• plasma

____ keep their size but not their shape.

• solids

• liquids

• gases

• plasma