click below
click below
Normal Size Small Size show me how
LE Topic 9 - Lab
Topic 9 Laboratory Skills
Term | Definition |
---|---|
balance | a tool that measures mass=grams |
chromatography | a laboratory technique used to separate pigments |
compound light microscope | a tool that uses more than once lens and a light source to magnify the object |
dichotomous key | a guide that compares pairs of observable traits t help the user identify an organism |
dissection | the act of cutting apart a dead organism to examine its internal structure |
electronic balance | a balance that measures mass automatically |
electrophoresis | a tool that allows scientists to separate DNA according to size |
graduated cylinder | a tool used to measure the volume of a liquid - milliliters |
indicator | a substance that changes color when it encounters certain chemical conditions |
magnification | the ability of a microscope to make an object appear larger |
mass | a measure of the quantity of matter in an object - grams |
metric ruler | a tool used to measure the length of an object - centimeters |
microscope | a tool that uses a lens or a combination of lenses to magnify an object |
stain | a chemical used to make cell structures more visible when viewed under a microscope |
stereoscope | a microscope that uses two eyepieces; often used for dissections; also called a dissecting microscope |
volume | the amount of space an object occupies |