1. True or False
1. The independent variable is on the x-axis. 2. The dependent variable is what YOU change. 3. A controlled experiment is an experiment where one thing is changed. 4. A variable is a factor that cannot change. 5. Constants are variables that are not changed.
T, F, T, F, T

2. Lab Safety Notes #5

3. I. General Lab Safety. 1. Wear proper clothing. a. Long pants. b
I. General Lab Safety 1. Wear proper clothing a. Long pants b. Closed shoes c. No loose clothing d. No dangling jewelry
4 Things!

4. 2. Follow instructions given by the teacher. 3
2. Follow instructions given by the teacher. 3. Clean up spills immediately. 4. Don’t eat, drink, or chew gum in lab OR class 5. Do not “play” in the lab.
2 things

5. II. First Aid. 1. Report accidents. immediately. 2
II. First Aid 1. Report accidents immediately 2. Using the fire extinguisher: P A S S
When?
ull im
queeze
weep

6. PASS

7. III. Heat and Fire Safety. 1. Always wear safety goggles. 2
III. Heat and Fire Safety 1. Always wear safety goggles 2. Do not touch hot glassware 3. Do not reach across a flame
What?

8. 4. Point heated materials away from yourself and others 5
4. Point heated materials away from yourself and others 5. Never heat chemicals in a closed container
Where?

9. IV. Chemical Safety 1. Never taste, touch, smell 2. Waft if needed 3. Never mix chemicals if you’re not told to 4. Never return chemicals to the original container

10. V. Glassware. 1. Broken glassware should be. reported to the teacher
V. Glassware 1. Broken glassware should be reported to the teacher immediately and then cleaned up

11. VI. Sharp Instruments. 1. Use caution. 2. Cut away from yourself and
VI. Sharp Instruments 1. Use caution 2. Cut away from yourself and others

12. VII. Spills. 1. Wash chemical spills on. yourself with running water
VII. Spills 1. Wash chemical spills on yourself with running water for at least 15 minutes after alerting the teacher

13. 2. If you spill something on the table or floor, alert the teacher then clean it up YOURSELF
Who?

14. VIII. Lab Equipment 1. test tubes 2. beaker 3. safety goggles 4
VIII. Lab Equipment 1. test tubes 2. beaker 3. safety goggles 4. Erlenmeyer flask 5. test tube holder 6. thermometer 7. alcohol burner 8. wire brush 9. test tube rack 10. graduated cylinder

15. Safety Contract Read and Sign

16. A SAFE lab is a FUN lab!

17. True or False
1. You can wear open-toe shoes. 2. Don’t eat, drink, or chew gum. 3. You may remove hot glassware with your hand as long as you are careful. 4. Always point heating chemicals toward yourself. 5. Do not inhale deeply – waft instead.
F, T, F, F, T