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Leonard measures 20 grams of water into a bowl and puts it in the freezer. A day later he takes it out of the freezer and observes that it is larger than before. What is the mass of the ice?
- Response: 20 grams
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Sasha does an experiment that involves burning an 8 gram strip of magnesium metal in an open flame. After the experiment, Sasha measured 5.5 grams of white ash left over after burning the strip of metal. Does this experiment show the law of conservation of matter?
- Response: no, because mass measured after the experiment decreased
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A student buys a bag of granola snack mix that has a mass of 0.522 kg. She sorts the granola mix into groups: oats, raisins, and nuts. Next, she measures the mass of each group. What will the student find when she adds together the mass of each group?
- Response: The total mass of the groups will be 0.522 kg.
Leonard measures 20 grams of water into a bowl and puts it in the freezer. A day later he takes it out of the freezer and observes that it is larger than before. What is the mass of the ice?(1 point)
Responses
20 grams
20 grams
21 grams
21 grams
25 grams
25 grams
30 grams
Sasha does an experiment that involves burning an 8 gram strip of magnesium metal in an open flame. After the experiment Sasha measured 5.5 grams of white ash left over after burning the strip of metal. Does this experiment show the law of conservation of matter? (1 point)
Responses
no, because mass measured after the experiment decreased
no, because mass measured after the experiment decreased
yes, because the missing mass was trapped by the closed system
yes, because the missing mass was trapped by the closed system
no, because the magnesium was burned so mass was not lost
no, because the magnesium was burned so mass was not lost
yes, because the missing mass was released as smoke
A student buys a bag of granola snack mix that has a mass of 0.522 kg. She sorts the granola mix into groups: oats, raisins, and nuts. Next, she measures the mass of each group. What will the student find when she adds together the mass of each group?(1 point)
Responses
The total mass of the groups will be greater than 0.522 kg.
The total mass of the groups will be greater than 0.522 kg.
The total mass of the groups will be 0.522 kg.
The total mass of the groups will be 0.522 kg.
The total mass of the groups will be greater than 1.004 kg.
The total mass of the groups will be greater than 1.004 kg.
The total mass of the groups will be 1.004 kg.
1 answer