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Experiment
Observation
Control
Variables
Mixed bag
100
The correct number of independent variables in an experiment to make valid observations.
What is one independent variable?
100
Observations that involve measurements and numbers.
What are Quantitative observations?
100
Can an experiment have more than on control?
Yes, an experiment can have many controls.
100
A variable that can be measured.
What is a dependent variable.
100
A guess based on observation.
What is an inference.
200
Things in an experiment that remain unchanged through the procedure.
What is a control.
200
Observation is remarking on the quality of something.
What are Qualitative observations?
200
During the bunny copter experiment we recorded data based on observations. The height that we dropped the copter from was a variable or a control?
What is a control?
200
A variable that is intentionally changed through an experiment.
What is the independent variable?
200
Jack went to the store and purchased 2 apples, 1 bottle of water, and 1 sandwich. The next day Jack returned to the same store and made the same purchase. The cashier told Jack on the second day "see you tomorrow". What did the cashier do to make this statement.
What is make a prediction.
300
During an experiment I dropped a parachute from a 20 meter tall structure and recorded the time from release to it touching the ground. I repeated this experiment using a different mass a total of two times per mass. Is this experiment valid?
What is no, we need a minimum of three trials.
300
In the following statement identify the qualitative observation: The blue car weighs 1,000 kilograms and is driving towards ring road.
What is blue?
300
In an experiment controls allow us to isolate the variables. The maximum number of controls we can have in an experiment is three.
What is no, we can have as many controls as needed.
300
In an experiment we placed a car weighing 50 g on a ramp that was 20 cm tall. We then placed the car on a ramp that was 15 cm tall. Name the independent variable.
What is the height of the ramp?
300
The procedure from the Dancing Raisin Laboratory was shared with Mr. Wilcox's science class. During the experiment the raisins did not move. What could we do to avoid this problem in the future?
What is write a good procedure so the results should be similar.
400
In the following data set are there any values that may be incorrect? Time 1 = 1.65 s Time 2 = 1.97 s Time 3 = 1.63 s
What is 1.97 seconds, given that it is a much longer time than the others.
400
Mr. Merletti's favorite color.
What is orange?
400
When creating a data table for an experiment what do you record.
What is the independent variable vs. the dependent variable?