1. What is science?

2. Goals of Science Deals only with the natural world
The supernatural is outside the realm of science.

3. Collect and organize information

4. Propose explanations that can be tested.

5. In other words science is a body of knowledge that explains the natural world.

6. Science begins with observations.

7. Data is information gathered from observations
Quantitative = a quantity, an exact number or measure
Qualitative = a quality, a description

8. Inference = a logical interpretation based on prior knowledge

9. Hypothesis is a proposed explanation that is testable
Purina food will reduce a dog’s shedding.
Putting Miracle Grow on a plant will produce more flowers.
Benzoyl peroxide will decrease acne outbreaks.

10. How Scientist Work Scientific Method Ask questions, make observations
Gather information
Form a hypothesis
Set up a controlled experiment
Manipulated variable—the variable that is deliberately changed (aka independent variable)
Responding variable—the variable that is observed (aka dependent variable)
Record and analyze the results
Draw a conclusion
Repeat

11. Field studies and models
Field study—when nature is observed in its natural state
Models—using computers or other media to make a representation of a process, idea, or structure

12. Theory vs Law
Theory—a well-tested explanation that unifies a broad range of observations. NOT ABSOLUTE!
Law—a description of an observation.
Ex Gravity

13. Tools and Procedures Common Measurement system (SI)
Based off the metric system which is a decimal system of measurement based off of increments of 10.
Unit
Tool
Length
Meter
meter stick
Volume
Liter
Graduated cylinder
Mass
Gram
Balance, Scale
When converting within a measurement remember:
KHDBDCM

14. Temperature– measure of average kinetic energy (how hot something is)
It is measured in Celsius or °C

15. Data Analysis Data can be analyzed by a wide variety of tools Tables
Graphs
Charts
Drawings
models