Gravity propagates at the speed of light. So if the sun suddenly exploded or disappeared, we would continue orbiting it for 8 minutes even though it's no longer there.
Total living biomass on Earth is 550 billion metric tons. Humans account for 0.01% of that.
There are 10^21 living organisms for every 1 human. Earth is teeming with life.
PS: 90% of life by biomass is on land, only 10% in the ocean.
@teachersystems I disagree. One way is better than the other. Being guided means we have skin in the game and to advance we must show what we can do with what we know. Being taught can be faster and arguably has become obsolete. This is because the world no longer cares about just what we know.
NoVA teachers, you're invited! Join us for the 2nd CSTA NoVA Coded Camp, Thurs. 4/22 from 6:30-8:00 pm via Zoom. Get/share ideas w/ K-12 #CompSci Ts at this edcamp-style virtual PD event. Session topics for ES-MS-HS! Signups: bit.ly/CodedCamp4-22@csteachersorg@codevirginia
What an awesome field trip to the Grand Canyon with
@MsSplan and our amazing 5th graders. What a great way to study Weathering, Erosion, and Deposition... @AbingdonGIFT@APSVirginia @APSscience
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