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Scientific Process

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Physical Science Scientific Method

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Questions 11

Answers

1
A dependent variable is ___.
a variable that is changed
The anticipated effect
something that stays the same
rarely used
2
Supported by experimentation and appears to explain WHY something in nature happens.
Hypothesis
Scientific (or natural) law
Scientific theory
3
A scientific hypothesis ___.
may be modified as new evidence becomes available
may be described by all of the above
is a prediction of the outcome of an experiment
is one that can be tested
4
Which is a qualitative observation?
25 meters
20 km/hr
blue
200,000 kg
5
An independent variable is ___.
a variable that is changed
something that stays the same
rarely used
The anticipated effect
6
Which is a quantitative observation?
100 grams
tasty
round
red
7
A constant (or control variable) is ___.
rarely used
the most powerful variable
something that stays the same
a variable that is changed
8
The application of science to meet human needs and solve problems is called ___.
experiment
science
technology
engineering
9
In order for evidence to be considered scientific, it must be ___.
objective and repeatable
published in a highly respected science journal
the opinion of a very important scientist
deduced by a detective
10
An observable fact that has been tested many times and explains WHAT in nature happens.
Scientific theory
Hypothesis
Scientific (or natural) law
11
Which of the following hypotheses is testable and disprovable?
All of the above
A chocolate bar tastes better than a potato chip
Aliens control everything that happens on Earth
the harder you push a small wagon, the faster it goes