What is an SEM?

What is an SEM? Activity

An SEM magnifies objects thousands of times. Check out SEM images that show how things like salt, spider silk, coins, and algae look at the nanoscale. Watch a video about SEMs and see spider spinnerets in full nanoscale detail!

Going Further
Related Activites from How To Smile

Try out the related activities listed below from 24/7 Science and other sources. Be sure to visit Howtosmile.org to find even more science and math activities on the web!

24/7 Science - Related Activities