Introduction to Nature of science

An educated guess or testable prediction is a

• theory

• law

• hypothesis

• conclusion

The amount of space occupied by an object is its ________________.

• length

• volume

• mass

The steps commonly used by scientists in gathering information to test hypotheses and solve problems are called _____.

• scientific inquiry

• hypothesis

• scientific method

Goggles are worn in the lab...

• To avoid eye strain

• To improve your vision

• Only if you don't have personal glasses on

• Any time chemicals and glassware are used, and when told to by the teacher

You cut your finger during a lab experiment. The first course of action is to...

• Visit the school nurse after class

• See a doctor after school

• Tell the teacher at once

• Apply first aid yourself

Long hair in the lab must be...

• Cut shorter

• Held away from the experiment with your free hand

• Neatly groomed

• Tied back to be kept out of the way

When you finish working with chemicals and lab equipment, always...

• Treat your hands with skin lotion

• Wash your hands with soap and water

• Wipe your hands on a towel

• Wipe your hands on your clothes

What should you do if you break glass in the lab?

• Tell the teacher.

• Sweep up the glass.

• Pick up the glass with your hands.

• Ignore it; the teacher will clean it up when she sees it later.

When should you tie back long hair or baggy clothing?

• When working with chemicals

• When working with a Bunsen burner

• When doing dissections.

• Any time you are working in the lab.

Part of lab safety includes reading the lab procedure...

• before doing the lab

• while doing the lab

• after doing the lab

• only if you think you really need it