Seasons
The planet spinning on its axis.
rotation
The shadow created from an eclipse is called a(n) _________________.
umbra
What is gravity?
a force that pulls in all directions and towards the center of mass.
The hottest planet
Venus
A cooler star would be what color?
red, orange, or yellow
Line of latitude in which the Sun’s rays shine directly over on the winter solstice.
Tropic of capricorn
What do we call a full moon that appears bigger and brighter in the night sky?
A supermoon
Who is known for building the first telescope?
Galileo
What planet has no atmosphere?
Mercury
Most stars are composed of what two gases?
hydrogen & helium
What is the tilt of the Earth's axis?
23.5 degrees
What do you call the second full moon in a calendar month?
a blue moon
Nuclear fusion happens on stars because of __________.
gravity
1 AU is equal to __________miles.
93 million
What is found in the Kuiper Belt?
dwarf planets
What are the two reasons for the seasons?
Earth's axis tilt & revolution around the sun.
A solar eclipse occurs during a ___________ moon phase.
new moon
What model of the solar system do we believe in today?
heliocentric model
How many planets in our solar system have rings?
4 planets - Jupiter, Saturn, Uranus, Neptune
Where are comets found in our solar system?
The Oort Cloud - outer part of our solar system.
How is the angle of the sun different from summer to winter?
The winter sun is lower in the sky than a summer sun.
What moon phase follows a first quarter moon? Draw what we would see.
Waxing gibbous; drawing-teacher check
What role did Isaac Newton have in our solar system?
He was the first one to use the term gravity in our solar system.
Axis is tilted 97 degrees.
Uranus
What is nuclear fusion and where does it happen?
A reaction on stars (our Sun) where hydrogen & helium fuse to give off heat & light.