Read the information about Regina’s experiment, look at the illustrations and Table 1 then answer the question. Regina explored the strength of a magnetic field by testing the number of paperclips the magnet could hold by following these steps: Step 1 - She opened a large paperclip to make a hook. Step 2 - She placed the hook on the magnet at the edge of the magnet’s north pole. Step 3 - She added one paperclip at a time until the hook fell off the magnet. Step 4 - She recorded the highest number of paperclips the hook could hold. Steps 5 through 10 - She repeated this test every 2 cm until she reached the magnet’s south pole and recorded the data each time (see Table 1).What did Regina need to keep the same so that her test was fair?

These 150+ 4th 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 150+ 4th 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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