The Earth, the Moon, and the Sun
One orbit of the Earth around the sun takes _______.
~365 days or 1 year
The Sun is a _______.
What is heliocentrism (or the heliocentric model of the solar system)?
The idea that the Sun is the center of the universe and the Earth orbits it, along with all the planets
Is the Earth's orbit perfectly circular?
No; elliptical
Galileo was the second to propose heliocentric theory
True; first was Nicholas Copernicus .
One rotation of the Earth takes ________.
24 hours or 1 day
what are the names of all the planets, in order, starting from the Sun?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
What is geocentrism (the geocentric model)?
The idea/model where the Earth is the center of the universe, and the Sun, Moon, and other Planets all orbit it
burning gas
When it is winter in the Northern hemisphere, it is spring in the Southern hemisphere.
FALSE; winter & summer, spring & autumn
About how long does it take the Moon to orbit the Earth?
~28 days
The movement of a celestial body around another celestial body is called _______.
an orbit
Who was the first person to publish a book on heliocentrism?
Nicholas Copernicus
SUMMER and WINTER. The equinoxes (meaning equal time) are in the SPRING and AUTUMN.
The equator receives more solar radiation than the North and South poles.
TRUE; the equator gets more sun & is always hotter
What causes the seasons?
The Earth's tilt on its axis
the shape of the Earth, the Sun, the Moon, and all the planets is ________.
spherical
Who was convicted of heresy (lying and going against God and the Bible) and sentenced to house arrest for the rest of his life?
Galileo Galilei
The 3 inner planets are rocky planets, while the 5 outer planets (everything past Mars) is made of _____.
gas
A "shooting star" is actually an asteroid.
False; meteoroid. Asteroids do not enter the Earth's atmosphere.
The gravitational pull of the Moon as it orbits the Earth
The Moon is considered a __________ ____________ of the Earth.
natural satellite
Name the correct CENTURY that heliocentrism was invented. *You can say 1100, 800, etc.
Heliocentrism- 1543
If it is winter in the Northern hemisphere, then the South pole is nearly always in SUNLIGHT or DARKNESS?
SUNLIGHT
All of the planets orbit the Sun in the clockwise direction.
False; they orbit counterclockwise/anticlockwise