Chapter 1……  The study of life

 

 

Students should be able to :

 

·        Be aware of the safety rules and how accidents can be prevented .

·        List tools of biologists

·        Compare the features the light microscope ,stereomicroscope, and electron microscope.

·        List the SI units of measurements for length ,volume, mass ,time ,and temperature .

·        Explain the steps of the scientific method .

 

Chapter Outline

 

1.     Safety Rules  (print it)

 

2.     tools used in biology  

 

a.      microscopes

 

b.     measuring tools for length , volume , mass

 

c.     computers

 

3.     microscopes:  

 

a.       light microscope: uses light source, for transparent objects, magnifications up to 2000X

 

b.     Stereomicroscope: for opaque objects, magnifications up to 60X

 

c.     Electron microscope: uses a beam of electrons, for microscopic objects, magnifications up to 500,000X

 

 

 

     4.  SI units :      (study guide paper) 

 

    a.   length  1m = 100 cm = 1000 mm

 

    b.   volume :  1Lit= 1000 ml= 1000 c.c

 

    c.   mass :  1 kg = 1000 g = 1000,000 mg

 

    d.   temperature : T c= T f x 1.8 + 32         T f = (T c – 32) /1.8

 

          5.   the scientific method .(print it)       

 

 

Lab  1-2  ;   Study Guide 3-6  ;   Video : understanding science   ;  Microscopes