Hey little bacteria, why so negative?

High School/College

Is that bacteria gram-negative or gram positive? And what exactly are the different characteristics of each? Let’s do some gram staining to find out. This activity for college and advanced high school students shows how to identify and categorize organisms in a simple, time-tested way. Download our step-by-step biology activity to see exactly what you’ll need and how it’s done.

Download lesson

Recommended Materials:

As always, if you have any questions about activities or anything else, just ask the Ward’s Science Plus Us team at sciencehelp@vwr.com. Our in-house scientists and technicians are ready to answer even the toughest inquiries.

Previous Video
From liquid to solid – The Fantastic Floating Foam Reaction
From liquid to solid – The Fantastic Floating Foam Reaction

Science teachers: Want to see this quick, safe, and cool chemical reaction in your own classroom? Check out...

Next Video
An illuminating experiment
An illuminating experiment

Making an electrical circuit using copper tape on paper is a hands-on way to for science teachers to introd...


Subscribe to get the latest content from Ward's World.

First Name
Last Name
What Subject Do You Teach?
What grade do you teach?
Sign up for special offers and promotions
You're in! Thanks for subscribing.
Error - something went wrong!