The Scientific Method

1. The Scientific Method • Universal approach to solving scientific problems

3. Make sure your observations are Quantitative. Something you can count NOT Qualitative Feelings, relative measurements Observations

4. Give me an example of quantitative observation of this picture of the cast of House M.D.

5. Constructing an Experiment • Tests ONLY 1 variable at a time • Independent Variable • What you change in the experiment • Dependent Variable • What change because of the independent Variable • What you measure • Controls (constants) controlled variables • What stays the same in the whole experiment

6. 2 Groups in an Experiment • Control Group • The group that you do nothing new to • Experimental Group • The group with the independent variable • The group you change

7. Mega METRIC CONVERSION Kilo Hecta Deka base deci centi milli micro

8. SI UNITS Giga-1,000,000,000,000 Mega-1,000,000,000 Kilo-1,000 Heca-100 Deca-10 Base-1 Deci-0.1 Centi-0.01 Milli-0.001 Micro-0.0000001 Nano-0.0000000001 SI = Système International d'unités International System of Units

9. SI UNITS cont… • Length = meters (m) • Metric Ruler • Volume = liters (L) • Graduated Cylinder • Weight = grams (g) • Triple Beam/ Electronic Balance • Temperature = Celsius (C°) • Thermometer

10. 1000m= km • 2235cm = um • 0.7g= mg • 15m = mm • 49mL= cm3 • 16mm= m • 1mL = L • 32kg= g • 5um= m