how gneiss

The girl munchkin is always proud to identify gneiss. She looks for the characteristic striping. Gneiss is metamorphic, and the stripes form when intense heat and pressure--deep in the earth--turn granite or diorite into a sort of putty. The minerals are able to move a little, and sort themselves out into layers of like-minded (or … Continue reading how gneiss

Who Wore It Better?

The Yellow Jacket Hover Fly, Milesia virginiensis, is a biological mimic. It reaps all the benefits (if you call making small children scream a benefit) of being a stinging insect without actually having to expend the energy to make venom. Specifically, this hover fly mimics the Southern Yellow Jacket, Vespula squamosa. However, the whole hover … Continue reading Who Wore It Better?

Scat

Visited the Highlands Nature Center today. The boy munchkin found this fantastic field guide to scat. He was particularly interested in beavers, since beavers have been rerouting all of the water on my grandfather's farm. If you break beaver scat with a stick, it looks like sawdust. Because, you know, beavers.

It’s Coming….

It's really, finally going to be released. I'm still working on some last minute details with my fabulous editor (thanks Rachel Ledbetter), but Once Upon an Earth Science Book was listed in the Spring Catalog, so it's really, finally (yes, really, finally) happening.

Atlanta Science Festival

The Atlanta Science Festival--that fabulous week of (mostly free) science activities for all ages--is almost here again! It will be March 19-26 at venues all across the Metro area. I'll be presenting at the fabulous Little Shop of Stories on Thursday March, 24 from 6-7. Be sure to check out the complete listing of events … Continue reading Atlanta Science Festival