Around what object does the Earth revolve?
What is the sun?
An attractive force between all objects that have mass
What is gravitational force?
Moon behavior in the Northern hemisphere
What is grow from the right, then shrink to the left?
The imaginary point or line that Earth rotates around
What is axis?
Reason why Mercury is so difficult to see from Earth
What is because Mercury is hidden by the glare of the sun?
Earth rotates on its axis approximately how often
What is 24 hours?
Which planet has the most gravitational force?
What is Jupiter?
The moon changes from full moon to crescent shapes and back to full moon over the course of about a ________
What is a month?
Consequence of Earth's axis having a tilt of 23.5 degrees
What is different seasons?
What kind of planets are more likely to form a system of moons?
What are massive planets?
Earth completes one full revolution over the course of one _______
What is year?
What 2 things does the strength of gravitational force depend on?
What is mass and distance?
Why is the moon visible from Earth?
What is sunlight that hits the moon is reflected off its surface?
Sunlight transfers the largest amount of energy near this spot on Earth
What is near the equator?
Why Neptune is the hardest planet to see
What is Neptune is very dim and similar appearance to the stars?
Causes the sun to appear to rise and set, stars to move across the sky, and celestial objects to appear to move daily in circular patterns
What is Earth's rotation?
What is an Astronomical Unit (AU)
What is a unit of measurement that is about the distance of Earth to sun?
Moon's location during a new moon?
What is directly between Earth and sun?
first day of spring in the northern hemisphere and first day of autumn in the southern hemisphere
What is March Equinox?
This makes Jupiter easier to see than Mars
What is Jupiter is Larger than Mars so it appears to be brighter?
Earth speed allows it to resist the pull of gf between Earth and the sun
Why does Earth constantly revolve around the sun?
The requirements that must be met for an engineering solution to be considered successful
What is criteria?
phase between a new moon and a first quarter moon?
What is a waxing crescent?
The month in the northern hemisphere would you expect to see the sun arc highest in the sky and remain there for 15 hours
What is June?
3 requirements that define a planet
1. orbits the sun
2. nearly spherical shape
3. clears its neighborhood