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Biology Chapter 1 Section 1 What is Science?

Miller Levine Dragonfly Book

Mark Meredith

on 30 August 2015

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Transcript of Biology Chapter 1 Section 1 What is Science?

A scientist takes paint chips from 10 apartments in a large building. She tests for the presence of lead in the paint and finds it in all 10 samples. She then concludes that lead paint is probably present in all 120 apartments in the building. This conclusion is an example of
a scientific fact.
a scientific error.
a reasonable inference.
Which of the following shows the interaction of science and human values?
the debate over the best way to produce electricity
investigating how a manatee behaves
Determining what causes a disease
using a hypothesis to test an explanation

An understanding of science and the scientific approach is essential to making intelligent decisions.
Science and Human Values

Science is an ongoing process that involves:
asking questions
making inferences
testing hypotheses
Science as a Way of Knowing
Scientists use data to make inferences.

An inference is a logical interpretation based on prior knowledge or experience.
Thinking Like a Scientist
Science is an organized way of using evidence to learn about the natural world.

Body of knowledge
Knowing and Understanding
A good scientific hypothesis must be
able to be tested.
based on common sense.
Observations involving numbers are known as
qualitative observations.
hypothetical observations.
quantitative observations.
inferred observations.
Decisions involve many factors besides scientific information, including:
the society in which we live
economic considerations
moral principles
Citizens decide what to do when they vote.
Science and Human Values
Scientific understanding is always changing.
Good scientists are skeptics who question both existing ideas and new hypotheses.
Science as a Way of Knowing
Researchers often work in teams to analyze, review, and critique each other’s data and hypotheses.
Peer Review
A hypothesis is a proposed scientific explanation for a set of observations.

A hypothesis may be ruled out or confirmed.
Explaining and Interpreting Evidence
The information gathered from observations is called data.
Quantitative data
Qualitative data
Thinking Like a Scientist

Scientific thinking begins with observation.
Observation is the process of gathering information about events or processes in a careful, orderly way.

The goal of science is to:

investigate and understand the natural world.
explain events in the natural world.
use those explanations to make useful predictions.
What is the goal of science?
What Science Is and Is Not
1-1 What Is Science?
A possible explanation for a set of observations is known as
a hypothesis.
an inference.
a result.
Hypotheses are tested by performing controlled experiments or by gathering new data.
Explaining and Interpreting Evidence
Full transcript