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Nature of Science
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Marcus is completing a science experiment for class. He wants to see what effect water temperature has on plants. If his experiment contains one independent variable, which of the following would NOT be a constant in his experiment?
B
Two students prepare lab reports, one for a physics class and the other for a biology class. Which of the following items will both reports contain?
G
Elaine is studying the effect of sleep deprivation on motorists. The chart below shows the reaction times of the drivers she studied. What is the independent variable in Elaine’s study?
Total Hours awake
A scientist studying cold medicines hypothesizes that one particular medicine is more effective than the others in the study. He attempts the experiment several times. Each attempt produces a different result. What should he do next?
C
used to organize data when it is collected
Data table
a visual representation of data used to show patterns and relationships
Graph
group that does not receive the variable you are changing or gets the "normal condition"
Control Group
group that receives a different amount or type of the variable you are changing
Experimental Group
information gathered using your 5 senses
Observation
Name the steps for an experiment in order
Ask a question, research, state your hypothesis, experiment, analyze, make a conclusion
What step does every scientific experiment begin with?
Question/ Problem
What is a hypothesis?
An educated guess or If/Then statement
f I study for my scientific method quiz, then I will have a better test score. What is the dependent variable?
Test Score
Ms. Jenks sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
The mass of the ball
A list of the steps anyone could follow to conduct an experiment.
Procedure
In a controlled experiment, how many independent variables can be worked with at a time?
One
There are two types of data. Which type of data involves descriptions/photographs/illustrations that cannot be counted or measured?
Qualitative
The summary at the end of an experiment that explains the results.
Conclusion
There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?
Quantitative
A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is
The gender of the baby
A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is
Temperature
In an experiment, the factor that we measure is called the
Dependent Variable
In an experiment, the one variable that is changed is called the
Independent Variable
A students was doing an experiment using the scientific method. Every three days the student plans to count the green leaves. Which would be a good hypothesis for this experiment?
If plants are places in bright light, then they will grow more green leaves than in dim light.
A broad and comprehensive statement of what is thought to be true; it is supported by much evidence.
Theory
A possible explanation to a problem that has not yet been tested.
Hypothesis


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