1. BIOTIC Biotic means living organismMicroorganisms, animals,
plants, and humans are bioticcomponents
2. ABIOTIC Abiotic means non-living things Air, water,
sunlight, soil, rocks, and fire are abiotic components
3. MICROSCOPE the microscope was first invented by Antony Van
Leeuwenhoek based on the sources of light used to lighten the
specimen, microscopes can be classified into light microscopes and
electron microscopes a light microscope is able to magnify an
object up to 1,000x an electron microscope is able to magnify an
object up to 100,000x
4. The function of microscope parts Ocular lens to magnify
object view Body tube connecting ocular lens and objective lens
Revolver objective lens location Objective lens to magnify object
Arm part that is held when microscope is moved
5. Stage place for putting object Stage clips to clip the
specimen Coarse adjustment knob / Macrometer to focus image quickly
Fine adjustment knob / Micrometer to focus image slowly Diaphragm
to adjust light intensity Base to keep microscopes position
6. How to use microscope1. Hold the arm of the microscope with
one of your hands, while your other hand holds the base2. Place the
microscope on a flat-surfaced table with its arm right in front of
you3. Turn the revolver until you hear a click; adjust the position
of the lowest magnification objective lens until it reaches the
middle position of the stage4. Put the mount/object to observe on
the stage and clip the mount using stage clip
7. 5. Adjust that part to observe is pricisely on the stage
hole6. While seeing from side view, rotate macrometer carefully
that tube of the microscope goes down until it almost touches
(never touch) the mount7. While observing by ocular lens, rotate
macrometer slowly to raise tube of the microscope that the mount is
clearly seen8. Rotate micrometer to get best focus
8. Symbols of Some Hazardous Chemicals hazardous, sharp and
stingy smells Bromine, Ammonia Avoid to inhale, while using this
material, cover your mouth and nose with masker and do it in acid
shelf
9. Toxic Mercury, Carbon tetrachloride Keep in locked cabinet,
never use it without your teachers permission
10. Flammable Alcohol, Natrium, Pho sporus Keep alcohol away
from fire, keep sodium in kerosene, keep phosporus in water
11. Corrosive Chloric acid, Sulfate acid Use it carefully,
avoid spilling onto skin or clothing
12. Explosive Hydrogen, Potassium Never store hydrogen in a
laboratory (it may explode when you light in open air), keep
potassium in paraffin
13. Radioactive Carbon-14 Use this material as less as possible
(it can destroy your cells)