1. Where can science take me??

2. The Scientific Method: Problem solving procedure used by scientists (All of us!) The steps include:
1. Identify the Problem
EX. – Joe and my feet are burning while walking barefoot down
the street on a sunny day.
2. Gather information: Data from books, others experience, reports, etc.
EX. - Dark colors absorb sun; Grass is cooler than blacktop
3. Suggest a hypothesis (educated guess): Prediction that can be tested
EX. – I believe walking on the grass will be cooler than walking
on blacktop.
4. Design an Experiment to test your hypothesis. Must include a variable and controls. Variable – factor being tested (the change!)
Control – Parts that stay the same (doesn’t change!)
EX. – Independent Variable – I walk on the grass
Dependent variable – How your feet feel
Controls – Joe stays on the street; still sunny; no
footwear still; etc.

3. Do you use the scientific method everyday???
5. Record information (Data): Charts, tables, graphs. Record the results!!
6. Conclusion: Look at the results and see if your hypothesis was correct.
Do you use the scientific method everyday???
Do babies??
Theory vs. Law
Theory: An explanation of things based on many observations that do not disprove your explanation.
Law: A proven theory; Very few of these in nature
Can my hypothesis ever be a law?? Why or why not??

4. Measurement Tools in Science
1. Measurement tool: Metric ruler
Used for: Measuring distance
SI unit: meter (m) We often use centimeter or millimeter.
2. Measurement tool: Graduated cylinder
Used for: Measuring Volume (amount of space something occupies)
SI unit: Liter (l)
**Meniscus**: Downward curve of liquid that gets measured

5. SI Unit = Systeme International D’unites or Metric system!!
3. Measuring tool: Triple beam balance
Used for: Measuring mass (not weight)
SI unit: Kilogram (Heard of gram or milligram??)
4. Measuring tool: Thermometer
Used for: Measuring temperature
SI unit: Degree Celsius
**Important temperatures:
a. Body temp.  37 Degrees Celsius
b. Boiling point of water  100 Degrees Celsius
c. Freezing point of water  0 Degrees Celsius
5. Measuring tool: Stopwatch or clock
Used for: Measuring time
SI unit: Second (s)
SI Unit = Systeme International D’unites or Metric system!!