Scientific Process and Questions
 What question did the scientists who collected this data want to answer?a.  Are there more earthworms in the soil in the spring than in the fall?  b. What is the effect of plowingsoil on  the number of earthworms?c. How is the size of theearthworms affected by theseasons?d.Does plowing the soil affect how fast earthworms grow? Break It DownStudents in Ms. Lee's class are studying the processes of weathering. The stepsfor their investigation and the data they collected are shown below.Steps:1. Use a permanent marker to label four limestone rocks 1–4.2. Measure the mass of each rock and record the data in a table.3. Place the rocks in a plastic jar thatis three-fourths full of water. Screwthe lid on tightly.4. Shake the jar vigorously for 10 minutes.5. Remove the labeled rocks fromthe jar with a large spoon. Leavebehind any pieces that have broken off.6. Dab the rocks dry with a towel. Measure the mass of each rock again. 7. Pour the liquid that remains in thejar through a coffee filter and observe the sediment. Judith Miles: Student Space ScientistIn the early 1970s a high school student named Judith Miles wrote to the NationalAeronautics and Space Administration (NASA). Judith wondered if spiders wouldspin the same kinds of webs in space as on Earth.        NASA scientists decided to do Judith's experiment and send two spiders intospace. They would compare these against a control group of spiders on Earth. In1973 two spiders were each fed a housefly and then launched into spaceaboard Skylab, an experimental space station. The spiders were in a speciallymade cage. A camera took pictures of the spiders as they built their webs.It took two days before one of the spiders began weaving a web. The firstwebs were poorly constructed. However, both spiders soon made webs almostidentical to the webs made by control spiders on Earth.The diagrams below show a comparison of spider webs.Which question was Judithmost likely trying to answerwith her experiment?A. Why do houseflies becometangled in a spider's web?B.What amount of time doesit take a spider to spin a web?C. Will weightlessness affecta spider's ability to constructa web?D. What kinds of insects getcaught in spider websconstructed in space?
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