POD #3 Lab Safety 8/11/15 List two things you should do ahead of time to prepare for a lab. What is the most important rule when performing a lab? What do the following symbols mean:

Steps scientists use to solve a problem The Scientific Method Steps scientists use to solve a problem

Problem What we are trying to solve Always written in the form of a question (not yes or no) Questions begin with what, why, how and when

Research Gathering information (data) by reading and/or experimenting

Hypothesis Suggested solution to a problem based upon what is already known about the problem An educated guess (based on past experiences and knowledge)

Experiment Design an experiment to test the hypothesis Decide what materials are needed for the experiment List the procedures for the experiment

Observe, Record, Analyze Any observations you make, including all measurements must be written down carefully Data may be recorded in tables, charts, or graphs

After you have collected all of the data- carefully study and examine it in order to draw a conclusion

Conclusion After studying the data, discover the correct answer to the original problem Check to see if the answer supported your hypothesis Share your results

Example Problem: How many drops of water will a penny hold? Research: Hypothesis: I believe that the penny will hold __drops of water Experiment: materials- procedures-

Observe, Record, Analyze Conclusion