1. You have accidentally broken a test tube and spilled a chemical on the table. Which of the following best explains what you should do? A. Use water and paper towels to clean up the spill; place the broken test tube in the disposal container specified by the teacher for sharp objects. B. Throw the glass into the nearest trash bin and let the spill air-dry. C. Quickly dispose of the glass, wipe up the spill with the nearest cloth, and hope nobody notices. D. Caution your lab partners to avoid the area while you inform the teacher of the small accident.

2. You should wear safety goggle during every science block. A. True. You can never be too safe. B. False. You should wear goggles only when working with chemicals or heat.

A. True. You don't want to fall behind everyone else. 3. Right when you get to class, it is important to get started on the lab even if your teacher hasn't given you instructions yet. A. True. You don't want to fall behind everyone else. B. False. You should always read the directions before you start a lab.

4. When studying a chemical it is important to touch, taste, and smell it so that you know a lot about it. A. True. B. False.

5. Before starting a lab you should... A. Read all directions B. Clear off your table of books, food, and drinks. C. Ask the teacher about any questions you have. D. All of the above.

6. If you do not understand a direction or part of a lab procedure, you should A. figure it out as you do the lab. B. try several methods until something works. C. ask the instructor before proceeding

7. You are heating a substance in a test tube. Always point the open end of the tube A. toward yourself. B. toward your lab partner. C. toward another classmate. D. away from all people.

8. When gathering glassware and equipment for an experiment, you should A. read all directions carefully to know what equipment is necessary. B. examine all glassware to check for chips or cracks. C. clean any glassware that appears dirty. D. All of the above.

9. In a laboratory, the following should not be worn. A. loose clothing. B. dangling jewelry. C. sandals. D. all of the above.

10. Horseplay or practical jokes in the laboratory are A. always against the rules. B. okay. C. not dangerous. D. okay if you are working alone.

Testable question, or not? Are dogs a smart animal?

Testable question, or not? Do lions prefer to eat raw meat or cooked meat?

What phase of the engineering design process deals with fixing a design and making improvements? Design a prototype Communicate your results Troubleshooting Think of a problem that needs solved

Which of the following is not an example of a constraint Cost Deciding whether you want comfort or style Time Size

What is a prototype? A simple sketch of your design A positively charged part of an atom A made up word A working model of your design