Mr. Kauffman pours 20 grams of salt into a beaker that contains 500 grams of water. He stirs the mixture until he can no longer see any pieces of salt in the water. How much does Mr. Kauffman’s mixture of salt and water weigh?
520 g
512 g
20 g
500 g
Brianna melted an ice cube that weighed 260 grams. If all of the ice changed into a liquid, what would be the weight of the liquid water?
15.5 g
.5 g
60 g
260 g
If the squirrel is using the feeder, will the mass increase or decrease?
DECREASE
INCREASE
What does the law of conservation of mass state?
Matter cannot change form.
Matter can change form if it is destroyed.
Matter cannot be created or destroyed, it just changes form.
An ice cube has a mass of 5 grams just after taking it out of the freezer. What is the mass after it melts?
5 grams
10 grams
It cannot be massed after it melts.
1 gram
Brielle has 300.2 grams of water. If she froze the 300.2 grams of water, what would be the total weight of the ice cube?
300 grams
301.2 grams
300.2 grams
.2 grams
Mrs. Bostick has an apple pie. The weight of the apple pie is 250 g. She eats 150 grams of it. How much is left for Mrs. Bolen to have a piece?
350 g
100 g
250 g
150 g
Skylar weighed an ice cube in science class using a balance scale. She found that the ice cube weighed 277 grams. She melted the ice cube using a blow dryer. What is the weight of her ice cube ?
277 g
27 g
777 g
0 g
When matter goes through a change, what happens to its mass?
It does whatever it wants
It stays the same
It decreases
It increases
Mr. Green was building a squirrel feeder. He had two pieces of wood that weighed 2 kg. When he cuts the wood pieces into two, how many pieces of wood will Mr. Green have?
6 kg
4 kg
2 pieces
4 pieces
Even when matter goes through a physical or chemical change the matter cannot be ___________________ or _____________________.
created or destroyed
chewed up or eaten
permed or straightened
painted or erased
Jesse has a block of ice that has a weight of 305 grams. If he breaks that block of ice into three pieces, what is the weight of the three pieces combined?
.5 g
It has no weight
5 g
305 g
What happens to the mass of a tablespoon of salt after it dissolves in water?
It would weigh more.
It would not have any weight
It would weigh less.
It would stay the same.
Emma pours 15 grams of sugar into a beaker that contains 300 grams of water. She stirs the mixture until she can no longer see any pieces of sugar in the water. How much does Emma’s mixture of sugar and water weigh?
300 g
315 g
135 g
150 g
Breeze pours 42 grams of sand into a cup that contains 150 grams of water. If Breeze stirred that sand all around, what would be the weight of sand and water together?
150 g
190 g
42 g
192 g
Brooks boiled 67.5 grams of water. If all of the water changed into a gas, what would be the weight of the water vapor?
65.5 g
0 g
67.5 g
.5 g