I got this activity from Amanda Raymond at a class sponsored by fermi lab. On the activity itself it has a web-site www.KaganOnline.com

It is called Quiz-quiz-trade. Each student gets a card with a lab safety rule and the answer. The music starts and they walk around. Then when the music stops they find the person nearest them and each student will quiz each other on the lab rule they are holding. Then the music starts again and they walk around again. This seems like a fun way to review any concept really but it was first presented to me as a way to help students learn lab safety rules. You can either go over the rules first and have this be a review or have them learn the rules through this game.

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This is popular ..... but no one has added this....... or anything so far. I have no idea where this origonally came from but I do know that Flinn has it. If Flinn did not create this ....make yourself known.

Take a petri dish and draw an eye on it. Take an egg and break it in front of the classroom....say "This is your brain.....no..no.....This is your eye" Only put the eye white in the petri dish and place the petri dish on an over head. Then say "This is your eye on acid" put three drops of acid over the middle of the eye and students will be able to see that the person would not be able to see any more. I use concentrated Sulfuric Acid but pretend like it is just like any acid we will be using. Then I do the same thing with concentrated Sodium Hydroxide. Students will say nothing happened but then if you show a students close by or move it around a little they will see that the egg white has geld. Feel free to go through the same corny speech for the base like you did for the acid.

I went to a workshop created by Fermi Lab and the teacher (Sue Bober) suggested that you also go to a meat packing place and get real cow eyes. They you put it in a beaker of acid for ten seconds. "'If you ask students how long it should take for them to get to an eye wash they will probably say 10 seconds and be more involved." and when you take it out the eyes will have changed color and look really bad. I did not see what would happen to it if it was put in a base.

You may want to wait to announce you will do this until some kid randomly shouts out "DO IT WITH A REAL EYE" and then you will be the hero who was prepared for such a request. Or tell the student that was a good idea and say you will have he eyes in two days. It will seem like their idea! :) Again this was from a workshop from Fermi lab.

PLEASE WRITE ABOUT YOUR OWN WAYS OF PRESENTING THIS ACTIVITY

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