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Vocabulary
Parts of an Experiment
Repetition vs. Replication
The use of data
Educated Guess
100
becoming aware of something by means of using senses; the act of noticing or watching
What is observation
100
Why is the sliced cheese in the fridge all moldy?
What is recognize a problem or question
100
the Eiffel tower in Paris France vs. the Eiffel tower in Las Vegas, Nevada.
What is replication
100
The point of repeated trials is to ensure accuracy... Your results should be fairly close to each other. Look at this chart. Which groups data is most reliable? Reaction Time Group 1 Group 2 Group 3 Trial 1 0.998 1.052 1.008 Trial 2 1.250 1.054 0.986 Trial 3 1.513 1.053 1.039
What is Group 2
100
An interpretation of a wide range of observations with a single explanation for scientific questions is: A: Scientific Law B: Scientific Theory C: Hypothesis D: Conclusion
What is B, Scientific Theory
200
facts and evidence that support of refute a claim
What is evidence
200
I was right... touching is the critical factor in making cheese mold.
What is the conclusion
200
A basketball player practices his free throw shots and lay ups every Monday, Tuesday, Wednesday and Thursday at 5pm in the gym.
What is repetition
200
Alka-Seltzer Results Concentration Volume Shaking 1/2 (13s) 25mL (42s) 1 (19s) 3/4 (11s) 30mL (53s) 2 (2s) 1 (4s) 35mL (59s) 3 (1s) Students experimented on alka-seltzer reaction rate times and it is shown on the data table above. Which test variables contributed to a quicker reaction rate?
What is concentration and shaking
200
Scientific Laws are: A: constantly being developed, revised, or discarded B: describe results that scientists expect every time certain conditions are met. C: were made to be broken D: explain different results for the same repeated experiment
What is B, describes results that scientists expect every time certain conditions are met.
300
variable that is changed (manipulated variable) also known as the independent variable
What is test variable
300
I think that sliced cheese gets moldy faster because people touch it more.
What is hypothesis
300
other scientists perform your experiment and receive the same results.
What is replication
300
A student studying big cats creates the data table shown below. Is there enough data on the chart to draw a legitimate conclusion about leopards vs. lions & why? Cat Type of cat Color Weight Lion community based golden 350 lbs Tiger solitary orange/black 400 lbs Leopard golden/black Cheetah community based golden/black 200 lbs
What is no, because there is not enough data on the chart. There isn't any weight and the type isn't collected
300
Scientific theory is an interpretation of a wide range of observations with a single explanation. 2 examples of scientific theory are: A: Plate Tectonics B: Moon Phases C: Gravity D: Cells
What is A, Plate Tectonics and D, Cell Theory
400
a proposed explanation based on limited evidence. This is made to be studied and tested. (an educated guess based on limited knowledge)
What is a hypothesis
400
After five days, both sets of cheese that I touched are moldy. Both sets of cheese that I left alone have no mold.
What is data
400
Is data derived from an experiment done by many scientists and professionals more valid than observational investigation done by several scientists? Why or why not?
What is yes, because replication is one tool used that helps achieve accuracy and precision. Observational data is limited because each person can think something different about the same topic. In observational data, the data is opinion.
400
A theory is based on: A: concrete facts and evidence that do not change B: a series of questions C: set of hypotheses based on observations that can be modified by new data D: an educated guess
What is C, a set of hypotheses based on observations tat can be modified by new data
500
variable that is to be measured as a result of the change. the whole point of the experiment
What is outcome variable
500
I keep four separate sets of cheese in the refrigerator: five slices that I touch once a day; five slices that I leave untouched; five cubes of unsliced cheese that I touch once a day; and five cubes that I leave untouched.
What is the experiment
500
I performed 7 trials in which I increased the temperature of the water to see if the alka-seltzer reaction rate would be quicker.
What is repetition
500
Four track stars were racing on three different tracks. The time it took for each runner to get to the finish line was recorded in the data shown below. Race Time Runner Track 1 Track 2 Track 3 1 5.0s 5.3s 6.0s 2 5.5s 6.0s 7.5s 3 7.0s 7.6s 9.0s 4 4.0s 5.0s 6.5s
What is runner 4
500
Scientific Language and Correctness: "My hypothesis is true." is this the correct language for the result of a hypothesis? A: yes, hypotheses can be true with the right data B: no, it is not called a hypothesis C: no, data either supports or refutes a hypothesis D: yes, your hypothesis is always true
What is C, no, data either supports or refutes a hypothesis