Use the following information to answer the question. Two Investigations Students conduct investigations with solids and liquids over several days.Students pour vinegar into a beaker. They add a spoonful of baking soda to the vinegar. They observe bubbles. The bubbles stop when the baking soda is no longer visible.Students pour water into a beaker. They add a cube of frozen water (ice). They observe that the water level changes to 500 mL. After a few minutes the cube begins to melt. When the cube melts the water level does not change. Look at the investigation from day 1. What observation suggests that a gas has formed?

These 400+ 5th Grade science questions have been taken from the following state and regional science exams in the United States: AIMS-Arizona's Instrument to Measure Standards, Alaska Department of Education & Early Development, California Standards Test, MCAS-Massachusetts Comprehensive Assessment System, Maryland School Assessment, MEA-Maine Educational Assessment, MEAP-Michigan Educational Assessment Program, NAEP-National Assessment of Educational Progress, North Carolina End-of-Grade Assessment, New York State Educational Department Regents exams, Ohio Achievement Tests, TAKS-Texas... Show more

These 400+ 5th Grade science questions have been taken from the following state and regional science exams in the United States:
AIMS-Arizona's Instrument to Measure Standards, Alaska Department of Education & Early Development, California Standards Test, MCAS-Massachusetts Comprehensive Assessment System, Maryland School Assessment, MEA-Maine Educational Assessment, MEAP-Michigan Educational Assessment Program, NAEP-National Assessment of Educational Progress, North Carolina End-of-Grade Assessment, New York State Educational Department Regents exams, Ohio Achievement Tests, TAKS-Texas Assessment of Knowledge and Skills, Virginia Standards of Learning, & Washington MSP.
 

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