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S1 Review: Scientific Method
Test Description: S1 Review: Scientific Method
Instructions: Answer all questions to get your test result.
1) Darrel hypothesized that plants in soil mixed with fertilizer would grow taller than plants in plain soil. Identify the independent variable.
A
amount of sunlight
B
amount of time
C
amount of fertilizer
D
amount of plant growth
2) Darrel was curious how fertilizer would affect plant growth. Identify which type of graph would be best for comparing the two potted plants.
A
pie chart
B
histogram
C
line graph
D
bar graph
3) 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 time
C
amount of fertilizer
D
amount of plant growth
4) 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
Refuted, because a control group was not used as a comparison to the experimental group.
B
Supported, because the plant with fertilizer had more overall growth than the plant with no fertiliz
C
Supported, because the plant with fertilizer was healthier than the plant without fertilizer.
D
Refuted, because there was not enough information to support the hypothesis.
5) 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
both
B
none
C
negative
D
positive
6) 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
How does the amount of sunlight a plant receives affect the color of its leaves?
B
What material was the pot made from?
C
How often do poinsettias need water?
D
Does excess water around a plant's roots prevent it from taking in adequate nutrients?
7) 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
Lack of data makes the conclusion invalid.
B
Experiment tests too many samples.
C
Experiment is testing more than one variable.
D
Data manipulation makes the hypothesis untestable.
8) 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
no relationship
B
positive relationship
C
negative relationship
D
positive and negative relationship
9) Using the following numbers find the approximate mean: 154, 148, 152 ,145, 148, 155, 150, 148, 152, 152, 145, 148 and 146
A
155 bpm
B
149 bpm
C
152 bpm
D
148 bpm
10) Using the following numbers find the range: 154, 148, 152 ,145, 148, 155, 150, 148, 152, 152, 145, 148 and 146
A
10
B
12
C
8
D
4
*select an answer for all questions
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