School Improvement in Maryland

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Standard 4.0 Chemistry

Topic B. Conservation of Matter

Indicator 1. Cite evidence to support the statement that, "No matter how many parts of an object are assembled, the mass of the whole object made is always the same as the sum of the parts."

Objective c. Describe the relationship between the masses of whole objects to the sum of the mass of their parts using appropriate tools to gather supporting data.

Selected Response Item

A student mixed 25 grams of salt into 1,000 grams of water.

What is the mass of the saltwater mixture?

  1. 975 grams
  2. 1,000 grams
  3. 1,025 grams
  4. 2,500 grams
/share/assessment_items/xml/items/msa_science_5_001.xml

Correct Answer:
C