Answers Crowley Credit Recovery Environmental Systems AScientific Inquiry

Laboratory Safety Answers

0 verified answers

Free Preview

Which statement describes how to appropriately handle live earthworms in a lab investigation?

Pick up earthworms gently with moist hands.

Place individual earthworms on the lab table while setting up equipment.

Press the ends of the earthworms firmly against the table to keep them still.

Hold onto earthworms tightly with metal tweezers.

Free Preview

Error

Answer not available

Mario at lab table A needs a pair of forceps (tweezers). Max at lab table B tosses Mario a pair. In terms of laboratory safety, which best describes Max’s behavior?

It demonstrates a lack of planning.

It is unsafe and can result in someone getting hurt.

It is safe and appropriate.

It shows proper handling of equipment.

Error

Answer not available

Jacob is unsure about how to focus a slide under the microscope. What would be Jacob’s best course of action?

Ask the teacher for instructions.

Ask his lab partner for instructions.

Watch another student, and copy what he or she does.

Use the trial-and-error method until the slide focuses.

Which list best describes what should be worn by students in a biology lab where pouring chemicals into beakers is involved?

a long-sleeved shirt, safety glasses, protective gloves, and sandals

a long-sleeved shirt, safety glasses, protective gloves, and closed shoes

a lab coat, safety glasses, protective gloves, and sandals

a lab coat, safety glasses, protective gloves, and closed shoes

Kim knows that today’s lab investigation will involve heating liquids over an open flame. Which apparel choice would indicate that Kim planned to stay safe during the investigation?

a lab coat with long sleeves

open-toed, platform shoes

a long, loosely wrapped scarf

bracelets with dangling charms

What is the most important action for all students to take to stay safe in a science lab?

Follow all instructions that are given by the teacher.

Do not talk with students sitting nearby.

Know where all laboratory equipment is located.

Have 911 programmed into one cell phone per table.

Which action is designed to increase the safety of a person carrying a microscope from one place to another?

putting a cover over the microscope

setting the microscope to the high-power objective position

wrapping the electrical cord around the arm of the microscope

raising the stage of the microscope until it touches the objective

Lee and Celia are lab partners. While Celia pours a chemical into a graduated cylinder, some of the chemical splashes onto her arm. What should happen next?

Lee should continue working with Celia after helping wipe off her arm.

Lee should tell the teacher what happened to Celia when he leaves the lab.

Lee should tell the teacher while Celia washes her arm with soap and water.

Celia should stand in the safety shower while Lee tells the teacher.

Did you find these answers helpful?

Laboratory Safety Answers

More from this Course

TRY EDGENUITY HACKS