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WorksheetsIntro to Physical Science
Total questions: 14
Worksheet time: 7mins
Daniel and Sanya are scientists. Daniel is studying whether the increasing frequency of tropical storms is affecting coastal erosion. Sanya is investigating whether the discharge from industrial plants has any impact on the pH concentration of freshwater swamps in the surrounding area. Which fields of science are Daniel’s and Sanya’s studies most closely related to?
Daniel's field of study is ___ while Sanya's field of study is ___.
biological; earth and science
earth and science; chemistry
physical; chemistry
biological; physics
Scientific theories are always
true
unreliable
testable
Scientific theories are always
competing theories
new observations
untested hypotheses
The melting point of ice is 0°C.
Fact
law
theory
hypothesis
Repeated observations have consistently shown that oppositely charged objects attract each other.
Fact
Law
Theory
Hypothesis
When the elements carbon and nitrogen are mixed at 1500°C, they will react with each other.
Fact
Law
Theory
Hypothesis
Atoms are made of protons, neutrons, and electrons. Although we can’t directly see these particles, this structure explains many experimental observations.
Fact
Law
Theory
Hypothesis
What is the last step to the scientific method?
Conclusion
Bias
Hypothesis
Communicate Results
Which statement about the relationship between laws, hypotheses, and theories is true?
Laws that remain true over an extended period of time are considered theories.
A theory that holds true for a long time is considered a law.
If a law is not contradicted after a lot of testing, it may be considered a hypothesis.
If a hypothesis is not contradicted after a lot of testing, it may be considered a law.
Which sentence is a scientific statement?
Food cooked in ceramic pots has a better aroma than food cooked in copper pots.
A tall glass of water tastes better with a lemon wedge and ice cubes.
Today, there are more viewers watching baseball than ice hockey on television.
There is life on some other planet in the universe aside from Earth.
Why is it important for scientists to keep testing a hypothesis even after they’ve found it to be true?
Repeated tests help determine whether the hypothesis is always true in different circumstances.
Experiments are rarely accurate, so it’s important to keep testing a hypothesis.
Scientists can learn experimental procedures through repeated testing of a hypothesis.
Repeatedly testing a hypothesis qualifies it to be accepted as a theory.
Why is peer review an important part of the scientific process?
It permits scientists to have their work translated into other languages.
It ensures that the quality of scientific research is maintained.
It helps the scientist decide how to conduct the scientific investigation.
It increases scientists’ knowledge about other disciplines of science.
Two scientists work together on an experiment, but they have different hypotheses. When the scientists look at the experimental results, they interpret the data in different ways and come to different conclusions. Which of the following does this situation best illustrate?
scientific consensus
peer review
selection bias
confirmation bias
Which of the following best describes a person doing science?
Dominick uses a computer to do his math homework.
Lindsay measures the sizes of the craters on the Moon.
Isabel invents a new kind of doorknob.
Murray randomly predicts the result of a coin toss.
