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- 1. Multiple Choice
All of the following are steps in the scientific method except
observing and recording data
forming a hypothesis
discarding data inconsistent with the hypothesis
developing a model based on experimental results
- 2. Multiple Choice
Which of the following observations is quantitative?
The liquid turns blue litmus paper red.
The liquid boils at 100 degrees C
The liquid taste bitter.
The liquid is cloudy.
- 3. Multiple Choice
Which of the following observations is qualitative?
A chemical reaction was complete in 2.3 seconds.
The solid had a mass 23.4 grams.
The pH of a liquid was 5.
Salt crystals formed as the liquid evaporated.
- 4. Multiple Choice
A statement that can be tested experimentally is a
variable
model
generalization
hypothesis
- 5. Multiple Choice
A theory is best described as a
series of experimental observations.
generalization that explains a body of known facts or phenomena.
scientifically proven fact.
testable statement.
- 6. Multiple Choice
A plausible explanation of a body of observed natural phenomena is a scientific
control
experiment
law
theory
- 7. Multiple Choice
Quantitative observations are recorded in the form of
numerical data
detailed descriptions
precise predictions
step-by-step procedures
- 8. Multiple Choice
Which of these statements about the scientific method is not true?
All experiments must follow the same step-by-step procedure.
Experiments may be repeated several times.
Some unexpected results can be beneficial.
Experimental results may or may not support the hypothesis.
- 9. Multiple Choice
Ten plants are grown in equal amounts of sunlight with equal amounts of water and varying amounts of fertilizer. Sunlight, water, and fertilizer are
controls
experiments
systems
variables
- 10. Multiple Choice
An experiment was designed to measure the effect of sulfur dioxide emissions from a power plant of the pH of rain falling downwind of the plant. In this experiment, the average pH of rainwater upwind from the plant would be considered
a model
a variable
the hypothesis
the control
- 11. Multiple Choice
The variable that is measured is
control
constant
Independent variable
Dependent variable
- 12. Multiple Choice
The variable that you as the experimenter manipulates is the
control
constant
independent variable
dependent variable
- 13. Multiple Choice
All variables that remain the same are
constants
controls
independent variable
dependent variable
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