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Moon's Phases 2

(Jael)

QuestionAnswer
Who thought all of the objects in space orbited around the Earth? Ptolomy
The model where the Earth is at the center of the system of planets is called _____. Geocentric
Who proposed the theory that the objects in space revolve around the Sun? Copernicus
The model where the sun at the center of the solar system is called _____. Heliocentric
Who discovered that the planets orbited the sun in an elliptical shape? Kepler
Who used a telescope and observed the 4 largest moons of Jupiter and the phases of Venus? Galileo
When an object in motion stays in motion and an object at rest stays at rest unless acted on by an outside force Inertia
The force that pulls things down or toward another object Gravity
What is the name of the scientific theory that explains the formation of the universe? Big Bang Theory
What evidence is used to support the Big Bang Theory? The galaxy is expanding (getting larger). Cosmic background radiation
What is the name and type of galaxy that we live in? Milky Way Galaxy Spiral galaxy
Where is our solar system located in the Milky Way Galaxy On the outside edge of a spiral arm.
Name the characteristics of the INNER PLANETS. (Terrestrial Planets) Solid, rocky surface (terrestrial) Small size High density Thin or no atmosphere (except Venus) Close to the sun so they revolve quickly (shorter years).
Name the characteristics of the OUTER PLANETS. (Jovial Planets) Mostly gas (hydrogen and helium) Massive Low density Thick atmosphere Rings Far from the sun so they revolve slowly (long years)
What are the two forces that keep the planets in orbit around the sun? Gravity and inertia
What would happen to the planets if the sun did not have a gravitational pull on the planets? The planets would continue moving (inertia) out into space and away from the sun.
What would happen if the planets stopped moving around the sun (no inertia)? The gravitational pull of the sun would pull the planets into the sun causing them to collide.
What two factors affect the amount of gravitational pull between two objects? Mass – the greater the amount of mass, the greater the gravitational pull Distance – the smaller the distance between the objects, the greater the gravitational pull
What is the composition of a comet? Ice, rock and dust
Why does a comet have a tail? As the comet approaches the sun, the ice begins to melt and blows away from the sun.
What is the difference between an asteroid and a meteoroid? An asteroid is larger than a meteoroid.
Where are asteroids and meteoroids found? In space
What is a meteoroid called when it comes through our atmosphere? Meteor
What is a meteoroid called when it hits the Earth’s surface? Meteorite
Why is life possible on Earth? Temperature range makes life possible. Presence of water Breathable atmosphere (nitrogen and oxygen)
What are the phases of the moon starting with the moon between the sun and the earth? New Moon Waxing Crescent 1st Quarter Waxing Gibbous Full Moon Waning Gibbous 3rd Quarter (Last Quarter) Waning Crescent New Moon (repeats itself)
The earth ____________ on its axis once every _________. Rotates · 24 hours
The earth ______ around the sun. This takes _________. · Revolves · 365 ¼ days
Day and night are caused by _____________. Earth’s rotation on its axis.
Seasons are caused by __________________. The tilt of Earth’s axis as it revolves around the sun.
The phases of the moon are caused by_________. The moon revolving around the earth.
What causes the phases of the moon? The relative position of the earth, moon, and sun.
What order are the earth, moon and sun in for a lunar eclipse to occur? Sun, earth, moon
What order are the earth, moon and sun in for a solar eclipse to occur? Sun, moon, earth
What is the difference between a rotation and a revolution? Rotation: spinning or twirling on its axis. Revolution: traveling around a larger object.
Created by: joyandrod
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