Lab Safety and Experimental Design

What should you never do with chemicals in the lab?

• taste

• inhale

• touch

• all of the above

If you are not sure what to do during a lab activity:

• guess

• ask a teacher

• change lab partners

• just sit quietly and do nothing

When gathering glassware and equipment for an experiment, you should

• clean any glassware that appears dirty

• read all instructions carefully to know what equipment is necessary

• examine all glassware to check for cracks

• all of the above

Approved eye protection devices such as goggles are worn in the laboratory-

• to avoid eye strain

• only if you don't have corrective glasses

• to improve vision

• anytime glassware, chemicals or projectiles are used

What is the correct procedure for students to follow if a chemical is spilled?

• tell the teacher

• splash large amounts of water onto the spill

• run madly out of the room

• immediately ask to go to the restroom

Which of the following is considered safety equipment in our classroom?

• eyewash station

• fire extinguisher

• emergency shower

• all of the above

Bob and Lizzy are working in the lab. They are goofing off and break a glass test tube. Which rule did they break?

• know the location of safety equipment

• read instructions

• do not eat or drink in the lab

• no playing around

What is the independent variable of the following graph?

• blue

• days

• line graph

• red

Which day had the lowest number of push ups?

• Friday

• Sunday

• Tuesday

• Wednesday

What is the dependent variable of the following graph?

• Days

• Number of push-ups

• red

• blue