Do you know why we are all sometimes called "carbon units"?
Did you know that "megalith" means "big rock", which is certainly a good description of Stonehenge?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Ooids
xOoids : Small (< 2 mm), spheroidal, layered sedimentary grains, usually composed of calcium carbonate, but sometimes made up of iron- or phosphate-based minerals.
Scientists know that more of the Sun’s energy gets to our planet than leaves. It hasn’t always been this way. More energy is sticking around as heat because there are more heat-trapping greenhouse gases...Read more