Show:
LUNAR
STELLAR
ORBITAL
EARTHLY
PLANETARY
100
More of the Moon's lighted part is visible each night until the Moon is full
What is "What do you see when the Moon is waxing?"
100
It is a relatively cool star
What is "What can you tell about a star that has a red color?"
100
The path of an object that revolves around another object
What is an orbit?
100
Earth's tilt on its axis
What is the cause of Earth's seasons?
100
Red dust that is blown about by strong winds
What is covering the planet Mars?
200
It rotates once on its axis
What is "What happens to the Moon as it makes one complete revolution around the Earth?"
200
Surface temperature
What is "What determines the color of a star?"
200
Moons
What is "natural bodies that orbit some planets?
200
The Sun's rays strike Earth at an angle
What is the reason why you feel milder temperatures in the spring and fall
200
A planet's size and strength of its gravity
What is the determining factor for whether a planet has an atmosphere?
300
The unlighted side of the Moon
What is "What side of the Moon faces earth at the new Moon phase?"
300
Star's absolute magnitude
What is "What is the measure of how bright stars would appear if all stars were the same distance from Earth?"
300
Umbra
What is the darker, inner part of an eclipse shadow?
300
Summer
What is the season you experience when sunlight strikes Earth's surface directly?
300
Gases
What is it that most of the outer planets appear to be made of?
400
The craters and other surface features
What is "What have humans studied from the Moon landings?"
400
Nuclear fusion heats up clouds of gases and a new star is born
What is "What event in a star's life cycle happens inside a nebula?"
400
It appears this way because the Earth spins on its axis from west to east
What is the reason the Sun seems to rise in the east each morning?
400
Lunar Eclipse
What is the kind of eclipse that occurs when Earth is between the Sun and the Moon?
400
Average distance of Earth from the Sun
What is the distance in the solar system described by an astronomical unit?
500
The size of the lighted part of the Moon's surface that we see changes
What is "Why does the Moon seem to change its shape during the month?"
500
88 constellations
What is the division of the sky into groups of stars by scientists?
500
The distance light travels in one year
What is a light-year measuring?
500
Energy from solar flares that reach Earth
What is the cause of auroras sometimes seen near Earth's poles?
500
Orion is more visible in the winter sky than in the summer sky
What is the effects of Earth's movements on the star patterns you see from season to season?