1. What is Science?
Science – A way of learning about the natural world through observation and logical reasoning.
Scientific Inquiry – Refers to the various organized methods of investigating problems & answering questions (Lab Investigations).
Physical Science – The study of matter, energy and the changes that matter and energy undergo.

2. What is Science?
Skills Used By Scientists – Posing questions, making observations, and inferences, developing hypotheses, and conducting experiments –
Posing Questions – Curiosity drives scientific inquiry.
Observing – Involves using all 5 senses – sight, hearing, touch, smell , & sometimes taste -

3. What is Science?
Data – The facts, figures, and other evidence that you learn through observation.
Inference – A logical interpretation based on observations or prior knowledge. (An Understanding)
Hypothesis – A possible explanation for observations that relate to a scientific question - ( An Educated Guess) -

4. What is Science?
Variables – The factors that can change during an experiment
Independent Variable ( Manipulated) – The variable the scientists changes.
Dependent Variable (Responding) – The variable that is expected to change because of the Independent Variables.
Controlled Experiment – An investigation in which all variables except one (The Dependent Variable) remain the same or are controlled.

5. What is Science?
Qualitative Data – Descriptions, Sounds, Colors, or Odors –
Quantitative Data – Measurements made using standard units – Numbers - For Example: Temperature = 400 C or Speed = 100 km/sec
16. International System of Units (SI) – The metric system – A standard system of units used by all scientists.
17. Interpreting Data – Finding out what the data means by identifying patterns and trends.

6. What is Science?
Conclusion – States whether the data supported the hypothesis or showed the hypothesis to be false: A True or False statement –
Communicating Information – may be done by:
a. Writing articles for journals
b. Speaking at scientific meetings
c. Using the Internet
20. Scientific Theory – A well tested idea that explains & connects a wide range of observations.
21. Scientific Law – A statement that describes what scientists expect to happen given a certain set of conditions. For Ex. Gravity