1. Lab Safety Challenge #1 T. Trimpe 2008 http://sciencespot.net/

2. What’s wrong? Identify 6 different safety concerns shown in the picture below. Image: http://morrisonlabs.com/lab_safety.htm

3. The answers are … Image: http://morrisonlabs.com/lab_safety.htm Don’t eat or drink while in the lab. Don’t fool around during a lab. Always wear safety goggles when doing an experiment Always point test tubes and other items away from yourself and others when heating. Keep hair and other flammable objects away from flames. Don’t leave a flame unattended.

4. Lab Safety Challenge #2 T. Trimpe 2008 http://sciencespot.net/

5. What’s wrong? Identify 9 different safety concerns shown in the picture below. Image: http://morrisonlabs.com/lab_safety.htm

6. The answers are … Image: http://morrisonlabs.com/lab_safety.htm Always wear safety goggles during a lab. Don’t leave materials laying on the floor. Clean up spills immediately Don’t heat closed containers. Keep your lab area neat and clean. Unplug equipment when not in use. Don’t place lab materials near the edge of the table. Keep papers and other flammable objects away from flames. Don’t smell directly from a container - WAFT.

7. Lab Equipment Challenge #1 T. Trimpe 2008 http://sciencespot.net/

8. Can you name these items?

9. The answers are … Triple-beam Balance Beaker Safety GogglesTelescope Test Tube Eyedropper Graduated Cylinder

10. Lab Equipment Challenge #2 T. Trimpe 2008 http://sciencespot.net/

11. Can you name these items?

12. The answers are … Vernier Caliper FlaskSpring Scale Mortar & Pestle MicroscopeTest Tube

13. Challenge 3 L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/

14. Which piece of lab equipment would you use to measure exactly 25 mL of water?

16. Challenge 4 L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/

17. Which piece of lab equipment would you use to measure approximately 200 mL of water?

19. Challenge 5 L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/

20. Briefly describe how you would use these objects to heat the contents of a test tube.

21. First, put on safety goggles and lab apron. Tie back long hair and check your shirt sleeves. Second, light alcohol burner with match. Third, remove test tube from rack and hold test tube with test tube clamp. Finally, when heating test tube, hold with clamp, place bottom of test tube over flame, and point the opening away from your face.