1. Bellringer: The Nature of Science
Chapter 1, Section 1
Branches of Science, Scientific Laws, and Theories and Models
Bellringer: The Nature of Science
Even before you started this course, you knew a lot about science because science and its effects surround everyone in our society. To help you tap this knowledge, answer the items below.
The term science encompasses many areas of study. Name four branches of science and briefly describe the topics that are studied in each.
Computer technology has changed the way many tasks are completed today. Name three other technological advances that have occurred since 1900 that have changed our lives significantly.

2. What Scientists Do?
Investigate
What do scientists investigate?
Experiment
What does a scientist do before an experiment?
Observe
What do scientists observe?
When do scientists observe?
How do scientists observe?
Test
What do scientists test?

3. Practical Application?
Branches of Science
There are many branches of science.
Three main branches:
Biological Sciences
Physical Sciences
Earth Science
Technology & Science
Pure Science –
A scientist doing experiments for the sake of promoting scientific understanding
What is the practical application of pure science?
Pure Science OR
Practical Application?

4. Laws, Theories, Models, & More
Scientific Law -
A summary of experimental results.
Tell how things work
Scientific Theory -
An explanation for something based on observation, experimentation, and reasoning
Why things work
1. Theories are always being tested
Models
What is a model?
Why use a model?