CHAPTER 1- THE SCIENCE OF BIOLOGY

____________________________ - A way of investigating the world in order to form general rules about what causes things to happen

_____________________________ - The study of living things

 

Biological knowledge is used to:

 

 

The Scientific Method - A series of steps used to solve scientific problems (Malaria example; Dr. Ronald Ross)

 

 

 

  

  

 

 

 

  

 

___________________: The factor being tested; compared with the control.

___________________: The experiment with the variable left out

 

 

 

 

___________________________: Numbers (measurements, amounts)

___________________________: Distinguishing characteristics (color/ shape/ texture)

 

 

 

 

 

Measurements in Biology

_____________________________________________ – (SI Units, or the Metric System): Measuring system based on the number 10, used universally for scientific measurements.

  

To Measure___ of an Object…. Use this SI Unit: What does this measure? How To Measure/ Miscellaneous
Length  

 

How long something is Use a Ruler
Volume  

 

Amount of space something occupies V = L x W x H
Weight   Force of gravity on an object Changes with atmosphere (earth/ moon) – Use balance
Mass   Amount of matter inside an object Doesn’t change with atmosphere – Use a balance
Temperature   Amount of heat in something F = 1.8(C) + 32 (Scientists use Celcius) Boiling Point of water = 100  C

 

When moving to the ______________ with conversion factors, move your decimal point to the ______________ the same number of conversion factors you are moving.

Example: When converting from meters to kilometers, you are you are moving 3 conversion factors to the left. So, move your decimal point 3 places to the left: 2.0 m = 0.002 km. Now fill in the table:

 

k

h

da

meter (m) , gram (g) , liter (l)

d

c

m

kilo

hecta

deka

  (no prefix)

deci

centi

milli

1,000

100

10

1

1/10

1/100

1/1,000

     

5,000 g

     
 

40 hl

         
       

0.8 dm

   

 

The Microscope (Also refer to Microscope diagram with notes, and Labs)

___________________ lens: 10X magnification

___________________lens: Low Power = ______X magnification
                                             High Power = ______X magnification

Total Magnification = (Eyepiece Lens) X (Objective Lens)

 

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