Nature Science (part 1) Flashcards
Nature Science Quiz (23 cards)
Test (independent) Variable
theonething that is changed by the scientist in an experiment.
Outcome (dependent) Variable
The one thing that is measured by
the scientist in an experiment.
Constant (controlled) Variable
The things that are kept the same
in the experiment.
Control (control group)
A group in the experiment which a variable is not being tested (the
normal to compare the results against).
Hypothesis
The predicted outcome of an experiment.
Conclusion
A summary of the experiment that
should state the hypothesis and tell whether the results of the experiment supported the
Empirical Evidence
information that is acquired by observation or experimentation.
Pseudoscience
Something that tries to explain a physical phenomenon that cannot
be proven by the scientific method.
What are the independent and dependent variables of this scenario?
One chicken is injected with a growth hormone while another chicken is not
injected. Both chickens are weighed after a year.
Independent: growth hormone
Dependent: weight of chickens
What are the independent and dependent variables of this scenario?
A bug repellent is sprayed on one arm the other arm is not sprayed. The
number of bug bites is recorded after 2 hours.
Independent: bug repellent
Independent: number of bites
What are the independent and dependent variables of this scenario?
Javier sleeps 9 hours the night before his science exam. His twin sister has
the same exam and sleeps 6 hours the night before the test. Afterwards, they
compare their scores.
Independent: sleeping hours
Dependent: their scores
What are the independent and dependent variables of this scenario?
Group A exercises for a month. Group B does not exercise. They measure the
amount of weight they gained.
Independent: exercise
Dependent: amount of weight gained
What are the independent and dependent variables of this scenario?
One math class studies for an assessment while the math class next door does not. The scores of the
two classes are compared.
Independent: Study for an assignment
Dependent: the scores
What are the independent and dependent variables of this scenario?
One plant is given sunlight every day. Another plant is not given any sunlight. After 3 weeks, we measure how tall the plant is.
Independent: The given sunlight
Dependent: how tall the plant is
What are the independent and dependent variables of this scenario?
One plant is given sunlight for 12 hours a day. Another plant is not given any sunlight. After 3 weeks, we
compare how green each plant looks.
Independent: Amount of sunlight
Dependent: How green each plant is
Science or Pseudoscience? The Sun warms the Earth unevenly.
Science
Science or Pseudoscience?I’m 100% safe from lightening my home.
Pseudoscience
Science or Pseudoscience? My birthday falls under the sign of Aquarius, so I am creative and loyal.
Pseudoscience
Science or Pseudoscience? Snow occurs in temperatures that are 32°F or below.
Science
Science or Pseudoscience?Scientists decided that Pluto should be classified as a dwarf planet instead
of a planet.
Science
Explain how hypotheses are valuable if they lead to
further investigations, even if they turn out not to be
supported by the data.
Because it can lead to further investigations or overviews to see where they found that hypothesis
Distinguish between an experiment and other forms of scientific investigation.
Experiments are made to determine whether a hypothesis is correct or incorrect.
Scientific investigations consist of collecting data or graphing
Why are repetition and replication both important in scientific experiments?
Repetition is the act of repeating a scientific experiment to confirm its original results.
Replication is where a new scientist conducts the experiment under similar circumstances to confirm the original results
