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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 plant growth
D
amount of fertilizer
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
line graph
C
histogram
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 time
B
amount of plant growth
C
amount of sun
D
amount of fertilizer
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
Supported, because the plant with fertilizer had more overall growth than the plant with no fertiliz
B
Refuted, because a control group was not used as a comparison to the experimental group.
C
Refuted, because there was not enough information to support the hypothesis.
D
Supported, because the plant with fertilizer was healthier than the plant without fertilizer.
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
positive
B
both
C
none
D
negative
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 often do poinsettias need water?
B
Does excess water around a plant's roots prevent it from taking in adequate nutrients?
C
How does the amount of sunlight a plant receives affect the color of its leaves?
D
What material was the pot made from?
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
Data manipulation makes the hypothesis untestable.
B
Lack of data makes the conclusion invalid.
C
Experiment tests too many samples.
D
Experiment is testing more than one variable.
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
positive and negative relationship
B
negative relationship
C
no relationship
D
positive 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
149 bpm
B
148 bpm
C
155 bpm
D
152 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
8
C
12
D
4
*select an answer for all questions
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