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Physical Science 1

QuestionAnswer
Name four branches of Science Botany Zoology Biology Chemistry
Pure Science is defined as the continuing search for specific knowledge
Applied Science is defined as the search for ways to use scientific knowledge for practical applications
Technology is the application of science for practical purposes
Laws and theories are supported by experimental results
Scientific law is a summary of many experimental results and observations; a law tells how things work
Mathematics can describe physical events
A qualitative statement describes something with mathematical equations
Theories and laws are always being tested
A model is a representation of an object or event that can be studied to understand the real object or event
Scientist approach a problem by thinking logically
Critical thinking is the ability and willingness to assess claims critically and to make judgments on the basis of the objective and supported reasons
The Scientific Method is a general description of scientific thinking rather than an exact path for scientists to follow
Scientific method is a series of steps followed to solve problems including collecting data, formulating a hypothesis, testing they hypothesis, and stating conclusions
Scientist test a hypothesis by doing a controlled experiment
In a controlled experiment, all the factors that could affect the experiment are kept constant except for one change
A hypothesis is a possible explanation or answer that can be tested
A Variable is a factor that changes in a experiment in order to test a hypothesis
SI unites are used for consistency
Many observations rely on quantitative measurements
Line graphs are best for continuous change
The values of the dependent variable depends on what happens in the experiment
The values of the independent variable are set before the experiment takes place
Bar graphs compare items
A bar graph is useful for comparing similar data for several individual items or events
Pie charts show parts of a whole
Pie charts are idea for displaying data that are parts of a whole
Data in pie charts is presented as percent
Scientific notation is a method of expressing a quantity as a number multiplied by 10 to the appropriate power
Precision is the exactness of a measurement
Accuracy is a description oh how close a measurement is to the true value of the quantity measured
During a storm, rainwater depth is measured every 15 minutes. Which of these terms describes the depths of water? dependent variable
What is a scientific theory? an explanation of how a process works based on observations
Created by: Becca101