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Experimental Facts
Test Description: How to do a controlled experiment.
Instructions: Answer all questions to get your test result.
1) What is the three ways to analyze data?
A
graph, record and measure
B
compare, calculate and record
C
view, calculate and erase
D
calculate, graph, compare
2) What variable is intentionally altered or changed by the scientist?
A
Responding
B
Manipulated
C
Dependent
D
Control
3) How many manipulated variables are allowed in a controlled experiment?
A
one
B
infinite
C
two
D
three
4) In an experiment to determine if plants grow best when exposed to music, what is the responding variable to be measured?
A
amount of water
B
type of music
C
plant growth or change in plant height
D
amount of sunlight
5) What control variables exist in an experiment to measure if plant growth is affected by music?
A
plant height, music type, amount of sunlight
B
music type, water amount, sunlight
C
type of soil, amount of sunlight, room temperature
D
music type and plant growth
6) What lab variable is graphed on the x-axis?
A
Dependent
B
Control
C
Manipulated
D
None of these
7) How many varaible(s) may change in a controlled experiment? (maximum #)
A
infinite
B
one
C
three
D
two
8) Which of these measurement using a meterstick is correct when the width of your book was measured?
A
22.4 m
B
23.0
C
22.4 cm
D
22.0008
9) Water Displacement is used to find ...
A
the mass of water in a beaker.
B
calculate the mass of a liquid.
C
the length of a solid.
D
volume of an irregular shaped solid like a rock.
10) The conclusion of an experiment must state if
A
the problem has a hypothesis.
B
the data analysis is accurate and a graph is constructed.
C
the data table is complete and accurate.
D
the hypothesis is correct or incorrect based on lab data,
*select an answer for all questions
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