S1 Review: Scientific Method: Question Preview (ID: 12057)


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Darrel hypothesized that plants in soil mixed with fertilizer would grow taller than plants in plain soil. Identify the independent variable.
a) amount of plant growth b) amount of time c) amount of fertilizer d) amount of sunlight
Darrel was curious how fertilizer would affect plant growth. Identify which type of graph would be best for comparing the two potted plants.
a) bar graph b) line graph c) histogram d) pie chart
Darrel was curious how fertilizer would affect plant growth. Identify which variable should be placed on the y-axis of the graph.
a) amount of sun b) amount of plant growth c) amount of fertilizer d) amount of time
Darrell hypothesized that plants in soil w/fertilizer (A) would grow taller than in plain soil (B). After 4 weeks plant A grew 2 cm more than B, way the hypothesis right/wrong?
a) Supported, because the plant with fertilizer was healthier than the plant without fertilizer. b) Supported, because the plant with fertilizer had more overall growth than the plant with no fertiliz c) Refuted, because a control group was not used as a comparison to the experimental group. d) Refuted, because there was not enough information to support the hypothesis.
If the fertilized plant grew 2 cm more than the plain soil, identify the relationship between amount of fertilizer and amount of plant growth.
a) positive b) negative c) none d) both
Randy planted in a pot without drainage holes. Over a month's time many of the plant's leaves turned yellow. What question can he ask that will lead to a testable hypothesis?
a) What material was the pot made from? b) How does the amount of sunlight a plant receives affect the color of its leaves? c) How often do poinsettias need water? d) Does excess water around a plant's roots prevent it from taking in adequate nutrients?
An experiments tests the absorption of sand, silt & clay soil but the student tests the sand & silt 3x but the clay only 2x. What's wrong with the experiment?
a) Experiment tests too many samples. b) Data manipulation makes the hypothesis untestable. c) Lack of data makes the conclusion invalid. d) Experiment is testing more than one variable.
What is the relationship between sugar content and melting time for frozen water if as the amount of sugar increases, the melting time varies?
a) positive relationship b) negative relationship c) positive and negative relationship d) no relationship
Using the following numbers find the approximate mean: 154, 148, 152 ,145, 148, 155, 150, 148, 152, 152, 145, 148 and 146
a) 148 bpm b) 149 bpm c) 152 bpm d) 155 bpm
Using the following numbers find the range: 154, 148, 152 ,145, 148, 155, 150, 148, 152, 152, 145, 148 and 146
a) 4 b) 8 c) 10 d) 12
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