Answer:c- It will still weigh 15 grams
Explanation:
Given
Fifteen gram of a liquid plastic are frozen in a physical change that increases the volume.
It is certain that the mass of plastic will remain fifteen grams despite the increase of volume as density of the plastic will automatically adjusted to get same mass

An example of casework by a member of Congress based on the options given will be B. working with a caucus on a public policy that affects his or her constituents.
Casework simply means the assistance that's provided to constituents by the member of Congress who need help while filing a grievance that they've with the government.
An example of casework by a member of Congress is working with a caucus on a public policy that affects his or her constituents. This is important to the representational duties of the member of Congress.
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THE ANSWER IS C, BECAUSE WE DID THAT IN SCHOOL