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SI and LS

Scientific Invest. and Lab Safety

QuestionAnswer
Problem Identify the problem
Research Research the problem
Hypothesis Formulate hypothesis to explain the observation
Collect data Perform experiments and gather all the data together
Analyze data Look at all the data and figure out what is important about it
Conclude Tie everything together
Control the part of an experiment that serves as a standard to which variables are compared
Constants all the variables that do not change in the experiment
Dependent Variable the variable you expect to change after you do the experiment
Independent variable the one variable you change in the experiment
Hypothesis a possible answer to a question based on gathered information
Data information collected from observation and experiment
General Lab Safety Know where all the safety and emergency equipment (e.g. eyewash station, fire extinguisher, fire blanket, first-aid kit, etc.) is located in the lab.
General Lab Safety Read the entire lab procedure before you begin an experiment.
General Lab Safety •Only perform the assigned experiment when the teacher has given you permission to do so, and when the teacher is supervising.
Personal Safety Always wear closed-toe shoes, safety goggles, a protective lab apron or lab coat, and protective gloves when working in the lab.
Personal Safety •Tie back long hair, and roll up loose sleeves. •Never eat, drink, or apply makeup in the lab.
Personal Safety •If a chemical gets in your eye(s), go to an eyewash station and flush your eyes with water for at least 15 minutes. Notify the teacher.
Chemical Safety Avoid contaminating stock solutions; never return unused chemicals to their original container
Chemical Safety Always pour an acid or base into water, not vice-versa. Use the mnemonic A&W to help you remember that you should add Acid to Water, not water to acid
Chemical Safety Never taste any chemicals in the lab
Glassware, Heating, and Electrical Safety Never use electrical equipment with a damaged cord.
Glassware, Heating, and Electrical Safety Use tongs or insulated gloves to hold or pick up hot objects.
Glassware, Heating, and Electrical Safety Use tongs or insulated gloves to hold or pick up hot objects
Field Safety Notify the teacher of any allergies or medical conditions that you may have prior to going into the field
Field Safety When heating chemicals in a test tube, point the opening of the test tube away from yourself and others
Field Safety Never insert glass tubing into a rubber stopper without teacher permission
Created by: megganrose
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