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Warm-Up Scientific Knowledge

Lesson Question

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WK2 Words to Know

Write the letter of the definition next to the matching word as you work through the lesson. You may use the glossary to help you.

systematic

subjective

pseudoscience

scientific knowledge

objective

science

hypothesis

observation

A. a process that involves the collection of information and ideas supported by belief or opinion

B. the information that is gathered through the systematic study of nature

C. based on opinion rather than fact

D. using a planned or careful method

E. something that is recognized or noticed using the senses

F. a possible explanation of or answer to a scientific question that is based on prior knowledge or research and is testable

G. a process that involves the collection of information and ideas supported by evidence

H. based on fact rather than opinion

Lesson Goals

Explain how scientific knowledge develops.

Define science andidentify its limitations. Recognize

characteristics thatscientists possess.

Distinguish betweenscience and

.

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Warm-Up Scientific Knowledge

The Learning Process

Experience

Thelearningprocess

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Science

• Science:

• is a process.

• involves observation and experimentation.

• involves the collection of information.

• is supported by evidence.

• Scientific knowledge:

• is information gathered from the systematic study of .

Process

• The process had to be well and well studied so that the

data would be accurate and .

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Pseudoscience

• Pseudoscience:

• is a process that involves the collection of and

supported by beliefs or opinions.

• Example — cracking knuckles causes arthritis.

Explanation

Science vs. Pseudoscience

Pseudoscience Lacks

Is

Is resistant to new information

Science Relies on process

Is

constantly

Is

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Characteristics of Scientists

• – ask questions about the natural world

• – take a closer look at the natural world

• – follow strict rules when using human or animal subjects

in research

• – use prior knowledge to solve problems

• – require evidence and think logically

Observation of the Natural World

• Scientific knowledge is developed by people making observations about the natural world.

• An observation may generate a scientific .

• A scientific question may lead to a .

• The hypothesis can be tested through .

• Experimentation leads to changes in knowledge.

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The Use of Technology

• Scientists rely on technology to make of things they cannot directly see.

• in technology often lead to new scientific

.

Repeated Experimentation

• Make observations.

• Repeat .

• Use proper .

• Repeat experiments.

Practical Limitations

•

• Money

•

• Size of a

•

• Other concerns

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Practical Solutions

• Limiting the

• Conducting studies over time

• Creating

• Acknowledging

Ethical Limitations

• Ethical controversies:

• Testing on

• Testing on laboratory

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Summary Scientific Knowledge

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Answer

Review: Key Concepts

• Science:

• is a process that involves the collection of and ideas supported by evidence.

• is conducted by curious, observant, ethical, creative, and

scientists.

• builds scientific knowledge through and experimentation.

• is limited by time, money, equipment, size, complexity, etc.

• Pseudoscience:

• is a process that involves the collection of information and ideas

supported by and .

Lesson Question How does scientific knowledge develop and progress?

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Summary Scientific Knowledge

Use this space to write any questions or thoughts about this lesson.