Chapter 1 Test
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A possible explanation or
answer to a question is a
A series of steps scientists follow to solve problems are
Scientists begin to
learn about the natural world by
Communicating the results
of an investigation allows other scientists to
What do scientists do to
determine if their results support their hypothesis?
measure their evidence
An investigation may
continue after results are accepted if there is
What order do the steps of
a scientific method follow
They do not follow a set order
A controlled experiment tests
one variable at a time.
Scientists form a
hypothesis when they
investigate a question.
Which of the following is NOT a way that models can be used in
to replace real things in the natural world
What model is used to show
objects that are too small or too large to see completely?
a physical model
A climate model is an
example of a
The data in a climate model
To learn from a model, a
choose the right model.
Why is it important to have
the International System of Units?
It can be used by scientists everywhere.
The volume of a liquid is
often given in
The basic unit for mass is
the............. in the SI system.
What should you do during
any science investigation?
Follow safety rules.
If you wanted to learn about plants and animals
that live in the ocean, you would speak to a
A scientist finds a vase
that she believes is 2,000 years old. She compares its features to those of
similar vases in a museum. She is
testing a hypothesis.
What kind of model is a
miniature space shuttle?
a physical model
How is a climate model an
example of a complex mathematical model?
It has many variables that must be processed by computers.
Why is it important for members of the
scientific community to learn the results of an investigation?
They can review evidence to further investigate the truth.
If you wanted to learn about the origin,
history, and structure of the Earth, you would study
It reduces the variables in mathematical
Which unit would be most appropriate for
measuring the mass of a cow?
What is an advantage of
having an International System of Units?
It provides a system that can be used only by scientists.
What step is the beginning
of the process that scientists use to learn more about the natural world?
An explanation that ties
together many hypothesis and explanations is called a(n)
A safety symbol that shows a picture of a bottle
reminds you to
use chemicals safely
To find the area of a
multiply length times width.
A scientific theory
ties together many hypotheses and observations.
The International System of
Units allows scientists to
share data around the world.
Visual aids in your
textbook that alert you to use caution during science investigations are called
What do astronomers study?
bodies in space
How do scientists begin to learn about the natural world?
They ask questions.
What steps do scientists
use to answer questions and solve problems?
What do scientists use to
show or describe how something works?
What do scientists find out when they draw
if their results support their hypotheses
Why are SI measurements
All scientists can use them.
What do scientists do after learning the results
of an investigation?
They review evidence.
Why do some investigations continue after the
results of the investigation are accepted?
There is new evidence.
What model can be used for objects that are hard
to see completely?
a physical model
Why must computers process
data from climate models?
The models have many variables.
What should you do before you start any
note safety information
What is the measure of how
much surface an object has?
What would you like to do?
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