Effects... What's the cause?
What is the reason for the seasons?
Earth's axial tilt
Which planet is named after its likeness to blood?
Mars
What is the Latin name for our sun?
Sol
What is the term for a cloud of dust and gas in space?
Nebula
What type of galaxy is the Milky Way?
Spiral
What two things affect gravity?
Mass and distance
What are the 8 planets in our solar system?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune
What size star is our sun?
Medium-sized
What is the term we use when describing moon Phases that means "lessening" or "getting smaller"?
Waning
What is the degree of earth's axial tilt?
23.5o (will accept 23.3-23.5).
If the northern hemisphere is tilted toward the sun and receives a great amount of direct sunlight, what season is it in the southern hemisphere?
Winter
Which planet in our solar system rotates clockwise on its axis but orbits the sun counterclockwise?
Venus
What are the two main elements that make-up stars?
Hydrogen and Helium
What is the term for a planet that is mostly rock and metal, with a solid rocky surface?
Terrestrial (planet)
What is the term for a region in space with a gravitational pull so intense that not even light can escape?
Black hole
What TWO things keep our planets in orbit?
Gravity and inertia
Which planet has the most moons?
Saturn
Why won't our sun become a black hole?
It isn't large enough. It would need to be 10-20x bigger.
What is the term for the two times of a year when Earth's axis is tilted neither towards nor away from the sun, resulting in a nearly equal amount of day and night?
Equinox
What does the Milky Way orbit?
Black hole (Sagittarius A)
Why do we see the moon in phases?
We see the moon in phases due to the amount of the lit part of the sun that we can see on different nights.
Which planet seems to rotate sideways on its axis?
Uranus
What is the greatest number of stars found in a single star system?
Seven
What are the two times of year that the positioning and tilt of the earth relative to the sun results in the most amount of daylight or night time?
Solstice
Why isn't Pluto considered a planet anymore?
It doesn't clear its orbital path (Other objects occupy the same space).