Know what you’re working with!! Laboratory Tools Know what you’re working with!!

Beaker Glass or plastic Varies in size (small to large) Approximate measurement of a liquid

Test Tube & Test Tube Rack Glass Tubes Holds small amounts of liquid Test Tube Rack = “Storage”

Test tube tongs / holder / grippers

Graduated Cylinder Glass or plastic Varies in size (small to large) Precise amount of liquid Graduations = “lines” that increase from bottom to top

Safety goggles / goggles Protects your eyes from chemicals/hazardous substances

Funnel Precise pour from larger container to smaller container

Bunsen Burner Heating/melting substances

Dropper Picks up small amounts of liquid Release liquid one-drop at a time

Thermometer Glass Measures how hot/cold a liquid is Contains the element mercury = poisonous!!! Not for use on your body!

Triple-beam Balance Very fragile Determines the mass of an object Always hold with TWO hands Determines the mass of an object Ever stepped on a scale at the doctor’s office?? Mass is similar but not the same as weight

Microscope VERY fragile! Observe very small objects/organisms Always hold with TWO hands Observe very small objects/organisms

Microscope Slides & Coverslips Slide = Glass Coverslip = Plastic Holds specimen in place under microscope No creepy crawlers!

Now……what you’ve been waiting for……. Dissections!!!!!

Dissecting tray Size of binder paper Keep specimen in here while dissecting May/may not have rubber on the bottom

Dissecting tools Scissors – Cut open specimen Probe – Pointing or holding open parts of specimen Forceps – Holding open specimen or holding to eyelevel for observation