planets
This is the planet that is closest to the sun.
Mercury
The sun is the center of this system.
solar system
The moon is a natural type of this that revolves around a bigger object.
natural satellite
This moon phase occurs when the moon is between the earth and sun so that the dark side of the moon faces earth.
new moon phase
What is the average distance of the earth to the sun?
93,000,000 miles
This is the 3rd planet from the sun.
earth
The sun is a type of this gas sphere that gives off light and heat.
a star
These are hollow pits on the surface of the moon.
craters
When the sun light shines on more and more of the moon, we say that the moon is doing this.
waxing moon
Two people push the box. One pushes with 5N to the right, and the other pushes with 3N to the left. What is the Net Force, and in what direction?
2 N to the right.
This is what all the planets have in common?
they revolve around the sun
It takes the earth 365 days to do this.
revolution
The scientist who first observed the craters on the moon through a telescope.
Galileo Galilei
It is during this time of day that shadows are smallest.
midday (or noon)
If two forces of 10 N are acting in opposite directions on an object, what is the net force, and is it balanced or unbalanced?
0 N, balanced force
These are the rocky planets.
Mercury, Venus, Earth, and Mars
This is how long it takes earth to complete one rotation.
24 hours --or one day
These two things cause the earth to experience seasons.
the tilt of the earth and its revolution around the sun
Which planets in the solar system have no moon?
Mercury and Venus
These are the gas giants.
Jupiter, Saturn, Uranus, and Neptune
The sun is responsible for this first step of the water cycle.
evaporation
How many astronauts have walked on the moon as of now?
12
What is the gravitational force on Earth?
9.8 meters per second
It takes this many minutes for sunlight to reach earth.
8 minutes