UEN Matter Test B

Sarah and Jake were each given a ball of clay of the same weight. Both students used all their clay to make an object. Sarah rolled hers into a ball; Jake make a long, skinny snake. What do you expect the weight of the clay figures to be now?

• Sarah's weights more because it is round.

• Jake's weighs more because it is long.

• There is no way of knowing

• The figures would be equal.

Stuart measures 10 grams of water and pours it into a container and seals it with a lid. He then freezes it. A day later he takes the container out of the freezer and notices the ice is larger than before. When he takes the ice out of the container, what would he expect it to weigh?

• 10 grams

• 11 grams

• 20 grams

• impossible to know

Tags

NGSS.MS-PS1-5

Which of the following is NOT a physical property of matter?

• phase (solid, liquid, gas)

• hardness

• shape

• flammability

5 grams of salt is dissolved in 100 ml of water to form a saltwater solution. If the solution is left to sit until the water has evaporated away, how much salt would you expect to be left in the container?

• 2.5 grams

• 5 grams

• 105 grams

• 500 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Martha wished to cool off a can of soda pop quickly. She put it in the freezer but then forgot. When she went back the next day, the can was ripped open and the soda was all over the freezer. Martha decided that a physical change had occurred when the pop expanded. What evidence supports her conclusion?

• The can was stuck to the freezer.

• No new substances had formed.

• The pop had changed from brown to blue.

• Both the pop and can were very cold.

Martha wished to cool off a can of soda pop quickly. She put it in the freezer but then forgot. When she went back the next day, the can was ripped open and the soda was all over the freezer. Martha wondered if all substances would do the same thing as the soda. How could she design an experiment to find out?

• Pour the same amount of 4 different liquids into ice cube trays. Wait one day and measure sizes.

• Put 1 can of soda in the freezer and 1 can in the refrigerator. Wait two days.

• Put 4 cans of soda in the freezer and leave overnight.

• Place 1 open can of soda and 1 unopened can of soda in the freezer and wait one day

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Baking soda and vinegar are mixed in bottle. A balloon placed over the top fills and expands with a gas. How do you know a chemical reaction has taken place?

• A solid and a liquid have been mixed together.

• A new substance has formed.

• The balloon has stretched and changed shape.

• The bottle has not changed

Tags

NGSS.MS-PS1-2

A pair of scissors left outdoors has rusted. What evidence shows that a chemical reaction has taken place?

• They are hard to use

• The sun has warmed them

• They are dirty

• They have turned orange

Tags

NGSS.MS-PS1-2

How are fireworks examples of chemical reactions?

• They are made of chemicals.

• They change color and require energy.

• It is easy to reverse the explosion.

• They are only used for special occasions.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-4

The food we eat is nearly always cooked, Why?

• It has to be cooked for us to chew it.

• Food cannot be digested if eaten raw.

• Cooking makes chemical and physical changes in food.

• Food changes color when it is cooked and looks more appealing.

Tags

NGSS.MS-PS1-4

NGSS.MS-LS1-7