Safety in the Lab Pages R 2 R

Safety in the Lab Pages R 2 -R 4 � 1. Be serious / NO HORSEPLAY IN THE LAB! ! � 2. Read all directions and follow teacher directions � 3. Never perform unauthorized activities

� 4. Never handle equipment unless given permission � 5. Never eat or drink in the lab � 6. Keep lab work area clean (equipment & hands)

� 7. Report any accidents or injuries to the teacher � 8. Never mix chemicals / dispose of them as instructed � 9. Never touch, taste, or smell chemicals (waft)

Safety continued � 10. Know where safety equipment is located, and know how to use it. � 11. Clean equipment and return to its proper place. � 12. Clean lab area and wash your hands.

Step 5 – Data is always measured in metric units S. I. – International System of Units length – km, m, cm, mm mass – kg, g, mg volume - L, m. L, cc or cm 3 temperature - o. C or o. K time - seconds, minutes, hours, days, years… 5

Reading a graduated cylinder Meniscus – concave surface set at eye level, read at bottom of the curve. Page R 6

Reading a metric ruler Page R 6

Laboratory Equipment

Safety Glasses – must be worn at all times

Dissecting tray with wax liner

Dissecting kit : dissecting scissors, scalpel, forceps, dropper, straight probe, bent probe

Using a Compound Light Microscope Pages R 8 – R 10 Know parts and functions Know techniques for making slides Know how to calculate magnification