In 1905 this way cool scientist published his special theory of relativity
A molecule is formed when 2 or more of these combine
When you drink with a straw, you're creating a partial one of these spaces that contain no matter
The Earth is the only planet in our solar system to have 2/3 of its surface covered by this
The Earth's crust & lithosphere are broken into these whose movements against each other cause earthquakes
The name of this phylum that includes lobsters & spiders means "jointed foot"
In 1952 she quit her job at the U.S. Fish & Wildlife Service to devote all her time to her writing
In 1911 Arthur Holmes used the decay of this element to lead to measure the age of the Earth
About one-millionth as bright as our sun, these small red stars are also known as flare stars
The mud eel is not really an eel, but a species of this tailed amphibian