The Ewww Experiment, or why you should wash your hands before dinner.

Elementary / Middle School

“Wash your hands, please.”

“But they’re not dirty!”

“Do it anyway!”

If you’ve ever had a conversation like this (or pity the parents who have), then you’ll want to check out this biology activity for elementary and middle-school students. It’s a quick, easy, and inexpensive way to show young learners what those invisible little organisms all around us can do. Just download our step-by-step guide to get started.

Download lesson

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 Article
8 reasons why owl pellets are awesome for studying food chains and the environment
8 reasons why owl pellets are awesome for studying food chains and the environment

Want to teach food chains and predator-prey relationships with owl pellets? Don’t miss these “insider” tips.

Next Video
Hank's Lab: The physics of projectiles
Hank's Lab: The physics of projectiles

Science teachers: Join Ward’s World’s favorite lab assistant, Hank, as he introduces high school students t...