School Improvement in Maryland

Using the State Curriculum: Science, Grade 5

Skills and Processes | Earth/Space | Life | Chemistry | Physics | Environmental

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Standard 4.0 Chemistry

Topic D. Physical and Chemical Changes

Indicator 1. Provide evidence to illustrate that when a new material is made by combining two or more materials, its properties are different from the original materials.

Objective b. Based on observations from investigations and video technology, describe what happens to the observable properties of materials when several materials are combined to make a new material, such as baking soda combined with vinegar

Selected Response Item

Use the information below to answer the following.

Students investigated the reaction that occurs when mixing baking soda and vinegar. The procedure for the investigation is shown below.The students recorded their observations in the data tables below the diagram.

Which observation shows that a chemical reaction took place when the baking soda was mixed with the vinegar?

  1. The flask stays cool.
  2. The liquid is cloudy at first.
  3. The bubbles form in the liquid.
  4. The liquid becomes clear over time.
/toolkit/vsc/assessment_items/msa_science_5_077.xml

Correct Answer:
C

Selected Response Item

Materials combine chemically or physically.

Which materials form a new substance when chemically combined?

  1. salt and pepper
  2. water and sugar
  3. iron nails and pennies
  4. baking soda and vinegar
/toolkit/vsc/assessment_items/msa_science_5_125.xml

Correct Answer:
D
Resources for Objective 4.D.1.b:
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