1. Laboratory Safety Rules & Scientific Equipment in Mr. Holcomb’s Class

2. Laboratory Safety Rules 1. Do only the experiment assigned or approved by the teacher. Unauthorized experiments are prohibited. 2. Wear proper eye protection, lab aprons or other specified protection during all lab activities. 3. No one is allowed to eat, drink or chew gum in the lab.

3. Laboratory Safety Rules 4. Never engage in horseplay or practical jokes in the lab. 5. Dress appropriately on days when lab work will be done. No open toe shoes. 6. DO NOT wear contact lenses in the lab when chemicals are being used. 7. Confine or securely tie hair that reaches the shoulder. Hair is flammable.

4. Laboratory Safety Rules 8. Immediately report all accidents, no matter how minor, to the instructor. 9. Never do any procedure that you are unsure of the proper way to perform it.

5. Scientific Equipment Compound Light Microscope (LM) Used to enlarge an image.

6. Scientific Equipment Graduated Cylinder Use to measure the volume of liquids.

7. Scientific Equipment Microscope Slide Supports an item being examined under the microscope. Cover slip Covers specimen on a slide.

8. Scientific Equipment Beaker Holds liquids while they are being stirred or heated. Test Tube Brush Used to clean test tubes.

9. Scientific Equipment Evaporating Dish Used for heating solids. Pinch Clamps Used to control the flow of liquid through tubing.

10. Scientific Equipment Funnel Assists in transferring liquids to containers with smaller openings. Striker Used to ignite a burner.

11. Scientific Equipment Test Tubes Holds liquids for observation or testing. Safety Goggles Protect the eyes from damaging substances.

12. Scientific Equipment Pipet Pump Dispenses known volumes of liquids. Eyedropper Used to transfer small amounts of liquids.

13. Scientific Equipment Forceps Used to hold or lift specimens. Magnifying glass Enlarge the image of an object.

14. Scientific Equipment Crucible Containers used for “strong” heating. Test Tube Rack Holds test tubes during observation or testing.

15. Scientific Equipment Wash Bottle Used for rinsing solids out of a container. Pipet Used for exact measurements of liquids.

16. Scientific Equipment Spatula Chemical spoons used to transfer solids form their original container to a scale for weighing. Wire Gauze Adds additional support for containers held on tripod or O-rings.

17. Scientific Equipment Crucible Tongs Used for picking up crucibles and crucible covers only. Mortar & Pestle Used to grind solids into powders.

18. Scientific Equipment Florence Flask Used to store liquids. Erlenmeyer Flask Used to store solutions.

19. Scientific Equipment Dissecting Pan Holds specimen being dissected. Test Tube Holder Holds test tubes while heating. (Clamp*)

20. Scientific Equipment Electronic Balance Used for weighing substances. Bunsen Burner Heat source.

21. Scientific Equipment Thermometer Used to measure temperature. Stopper Used to cap flask containing liquids.

22. Scientific Equipment Scalpel Used for cutting specimens being dissected. Tubing Hose used for connecting glassware.

23. Scientific Equipment Petri Dish Plate used to culture microorganisms. Triple Beam Balance Used for weighing substances.

24. Scientific Equipment O-Ring Used with ring stands to support heated vessels. Volumetric Flask Used to mix precise volumes of liquids.

25. Scientific Equipment Watch Glass Used on top of beakers when heating. Desiccators Used to remove moisture.