Build-your-own robot can tackle biology and chemistry experiments

Building off-the-shelf Lego robots can teach kids important skills like mechanical engineering, computer programming and teamwork. Now, Stanford bioengineers are adding life sciences and chemistry to the list.

Stanford researchers have developed a liquid-handling Lego robot capable of a range of experiments — integrating robotics, biology, chemistry, programming and hands-on learning into a single, open-source educational tool. Built from a cheap plastic syringe and a Lego Mindstorm EV3 Education kit, the robots are designed to pipette fluids into and out of plastic containers commonly used in laboratories.

The team also designed and tested several fundamental experiments for elementary and middle school students using their DIY robots and common household items like food coloring, salt or sugar, which are described in a recent paper published in PLOS Biology.

One of the favorites is an experiment that teaches kids about density and buoyancy by sequentially layering colored liquids with different salt concentrations into a single test tube — demonstrating that the liquids float on top of each other instead of mixing, and explaining why objects float or sink.

“We would love it if more students, do-it-yourself learners, STEM teachers and researchers would embrace this type of work, get excited and then develop additional open-source instructions and lesson plans for others to use,” said Ingmar Riedel-Krus. PhD, assistant professor of bioengineering, in a recent news release.

This is a reposting of my Scope blog story, courtesy of Stanford School of Medicine.

Advertisements

Author: Jennifer Huber

As a Ph.D. physicist and research scientist at the Lawrence Berkeley National Laboratory, I gained extensive experience in medical imaging and technical writing. Now, I am a full-time freelance science writer and science-writing instructor. I've lived in the San Francisco Bay Area most of my life and I frequently enjoy the eclectic cultural, culinary and outdoor activities available in the area.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s