Sicence 7 Flashcards
(12 cards)
Earth is the ______planet from the Sun
Third
Venus, Mercury, Earth, and Mars are the:
Rocky inner planets
How far is the Earth from the sun?
150 million km
What does the Earth have that allows it to support life?
Water and an oxygen rich atmosphere
How does the Earth’s atmosphere protect the Earth?
It blocks out most of the sun’s damaging rays
Ancient Greeks like Aristotle and Ptolemy believed ______was the center of our solar system, and the planets and the sun revolved around us.
The Earth
Copernicus and Galileo tried to convince the world that ______ was actually the center of the solar system, and all of the planets revolve around it, and not around the Earth.
The Sun
The NASA Apollo missions sent astronauts to the _______.
The moon
About half of Virginia is considered to be in the Chesapeake Bay ________ because the surface water and all of the materials it carries drain into the Chesapeake Bay.
watershed
Land drained by rivers west of Roanoke is part of the Mississippi _________.
watershed
Much of Virginia is covered in _________, an important natural resource for Virginia.
Forests
An important energy resource mined in the southwestern part of Virginia is ________.
Coal
