Mercury
Venus
Earth
Mars
Jupiter
100
What shape describes the Earth's orbit
An ellipse
100
Why does Earth revolve
The Sun's gravity pulls on it
100
What causes Earth's seasons to change?
Earth's tilt on its axis
100
What causes the phases of the moon to change?
the Moon's revolution
100
What process occurs in the core of the sun?
nuclear fusion
200
Identify the gases that make up the Sun's composition?
Hydrogen and helium
200
What causes tides on Earth?
the gravitational pull of the moon and the sun
200
An astronomical unit is the average distance...
from Earth to the Sun.
200
The day when fall or spring begins
equinox
200
The day when winter or summer begins
solstice
300
The phasing that reveal more of the moon
Waxing
300
The phases that reveal less of the moon
waning
300
What orbit close to the sun and have a rocky surface?
inner planets
300
What gaseous surfaces and more than one moon?
outer planets
300
Chunks of rock that form a belt just beyond Mars
asteroids
400
Light streaks in the atmosphere due to objects from space
meteors
400
Objects made of ice, rock, and dust that glow near the Sun
comets
400
Which lists the order of the Sun's interior from the center out?
Core, Radiative Zone, Convection Zone
400
What on Earth will a large solar flare or CME affect? (can be more than one answer)
radio signal and satellite signal
400
What does the picture show?
Solar eclipse
500
What does the picture show?
Lunar Eclipse
500
What season is it when the northern hemisphere is tilted toward the sun?
summer
500
What season is it when the northern hemisphere is tilted away from the sun?
winter
500
Which is NOT an interior layer of the sun?
corona
500
Names the inner planets
Mercury, Venus, Earth, and Mars