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"If a rabbit, a cat, and a dog areplaced in the same maze, then the dogwill find its way out first." A. the maze What is the independent variable in this hypothesis? B. how long it takes each animal to finish the maze C. the type of animal D. the number of trials completed If you eat three chocolate chip cookies before a test, then you will get all of the questions correct. Which part of the hypothesis above is the dependent variable? F. Which type of cookies you eat G. How many questions you answer correctly H. The subject of the test J. How many cookies you eat If you wanted to test two different brands of plant food to see which one would make plants grow fastest, which two plants should you use to make your experiment a fair test ? A B C D What is the volume of water in this graduated cylinder? A. 28 mL B. 24 mL C. 34 mL D. 30 mL ? Using the data from the graph, what will most likely be the number of bacteria after two hours have passed? F. 10 G. 12 H. 14 J. 16 Before beginning her experiment for the Science Fair, Arlene says, "If I put Mentos in Diet Coke, then theexplosion will be greater than if I put Tic Tacs in DietCoke." Her statement is called -- A. a hypothesis C. an independent variable D. a control variable (constant) B. a dependent variable Nakiyah reads that the water in the Atlantic Ocean iswarmest from June through November. Later, in Science class, she learns that Virginia has the most hurricanes during August and September. H. If water temperature increases, then the number of hurricanes increases. F. If water temperature decreases, then the number of hurricanes increases. J. If the water temperature increases, then the number of hurricanes decreases. G. If the number of hurricanes increases, then the temperature of the water increases. Which hypothesis below supports her observations? Which of the followingis an inference about thispicture, not an observation? B. The dogs have their mouths open. A. One dog is white with black markings. C. The dogs are fighting. D. Both dogs have black noses. Tyler predicts that if seeds are heated for ten seconds in the microwave before planting them, then they will sprout faster. How long it takes the seeds to sprout is the ____ in this scientific investigation. F. qualitative data G. independent variable H. dependent variable J. control variable (constant) If you are performing an experiment to see how much salt must be added to water to make an egg float, you should do many ____ to make sure your results are correct. D. inferences A. conclusions B. dependent variables C. trials making observations drawing conclusions interpreting data making a hypothesis What skill is a scientist using when she listens to the sounds that a whale makes? When a scientist shares herresults with other scientists she is experimenting communicating results analyzing results doing research A series of steps followed to solve a problem is The Scientific Method The Order of Science How to Investigate The Scientific Practices |