Lesson 2 Measurement and Scientific Tools
[Pages:75]Chapter Introduction
Lesson 1 Understanding Science
Lesson 2 Measurement and Scientific Tools
Lesson 3 Case Study
Chapter Wrap-Up
What processes do scientists use when they perform scientific investigations?
Understanding Science
? What is scientific inquiry? ? How do scientific laws and scientific
theories differ? ? What is the difference between a fact
and an opinion?
Understanding Science
? science ? observation ? inference ? hypothesis ? prediction
? technology ? scientific theory ? scientific law ? critical thinking
What is science?
? Science is the investigation and exploration of natural events and of the new information that results from those investigations.
? Scientific knowledge is the result of a great deal of debate and confirmation within the science community.
? People use science in their everyday lives and careers.
Branches of Science
There are three main branches of science--Earth science, life science, and physical science.
physical from Latin physica, means "study of nature"
Branches of Science (cont.)
? The study of Earth, including rocks, soils, oceans, the atmosphere, and surface features, is Earth science.
? The study of living things is life science, or biology.
? The study of matter and energy-- including both physics and chemistry-- is physical science.
Scientific Inquiry
Scientific inquiry is a process that uses a set of skills to answer questions or to test ideas about the natural world.
Scientific inquiries include many possible steps.
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