What is Earth is positioned between the Sun and the Moon such that Earth casts its shadow on the surface of the Moon.
100
What are the differences between meteor and Meteorites?
What is meteors are small chunks of solid matter that burn up in our atmosphere due to friction and meteorites are larger meteors that actually reach Earth’s surface.
100
What are the four Terrestrial Planets?
Mercury, Venus, Earth, and Mars
200
What is photoperiod?
The number of hours of daylight between sunrise and sunset
200
What are tides?
What is the alternate rising and falling of the surface of large bodies of water.
200
What are comets?
What are chunks of frozen matter that orbit the Sun in very long elliptical paths.
200
What are the four gas giants?
Jupiter, Saturn, Uranus, and Neptune
300
What is rotation and revolution?
rotation is the spinning of an object around an imaginary line called an axis.
revolution is the motion an object around another object
300
What causes tides?
What is the gravitational pull of the Moon on Earth results in the oceans bulging in the direction of the Moon.
300
What is the nebula?
What is a spread-out collection of dust and gases.
300
What are the characteristics of the terrestrial planets? ( name three)
relative high densities, slow rotations, solid metal cores, solid surfaces, and no rings.
400
What is perihelion and aphelion? When do they occur?
perihelion is when the Earth is closest to the Sun, it occurs around January 3rd.
aphelion is when the Earth is farthest to the Sun, it occurs around July 4th
400
What is a solar eclipse?
What is when Earth is positioned between the Sun and the Moon such that Earth casts its shadow on the surface of the Moon.
400
What are Asteroids?
What are rocky and metallic objects that revolve around the Sun, but are too small to be called planets.
400
What are characteristics of the gas giants? (name three)
atomosphere is mostly made up of helium and hydrogen gases, low densities, cores are denser and may contain metals, large is size and mass, and stronger gravitational fields.
500
What is the plane of the ecliptic?
it is the path the sun takes throught the sky is marked against the 12 constellations of the zodiac.
500
What are the phases of the moon?
What are New moon, First quarter, Waxing gibbous, Full moon, Waning gibbous, Third quarter, Waning crescent.
500
What is the Big Splash theory?
It states that approximately 4.5 billion years ago, a large object the size of Mars collided with Earth.
500
Why do gas giants have more moons than terrestrial planets?
because they are much bigger and have more gravity to attract material to form moons.