Moon Phases
What light is the moon reflecting
The moon has no light of it's own. It is reflecting sunlight
Solar eclipses happen during the ______.
Day
The darkest part of a shadow
What is the umbra
What is the main reason we have seasons?
The Earth's tilt
Explain why we have day and night
Because the Earth rotates on its axis. The part of the Earth that is facing the Sun experiences day and the part of the Earth that is facing away from the Sun experiences night.
Moon phases that are gaining light throughout the moon's cycle are the ________ phases
What is waxing
Lunar eclipses happen during the _______.
Night
The lightest part of a shadow
As light becomes more angled, it _______________.
What is spreads out
Why do we always see the same side of the moon?
The moon rotates at the same speed as the Earth throughout it's orbit, allowing us to only see that one side.
Moon phases that are losing light throughout the moon's cycle are the _________ phases
What is waning
Why does the moon appear red during a lunar eclipse?
Because the red light waves from the Sun get trapped in the Earth's atmosphere and are reflected off of the moon.
The line on which an object rotates, the fixed point
What is an axis
The______________ is when the northern hemisphere is tilted away from the sun, receiving indirect light and it is colder.
Winter Solstice
Describe the perihelion and the aphelion and how they disprove the idea that seasons are caused by the Earth's distance from the Sun
The perihelion is the point in which the Earth is closest to the Sun (in January). The aphelion is the point in which the Earth is farthest from the Sun (in July). The seasons cannot be caused by the distance from the Sun because we are actually further from the Sun in July and closer to the Sun in January, proving that distance does not cause seasons.
What moon phase comes after a 1st quarter moon?
A waxing gibbous
Solar Eclipse
A day when the poles are pointed as far as possible or as close as possible toward the sun. December 21 and June 21. Longest and shortest day of year.
What is a solstice
The ______________ is when the northern hemisphere is tilted toward the sun, receiving direct light and it is warmer.
Summer Solstice
Why don't we have eclipses every month?
The moon has a tilted orbit, meaning the moon has to be in just the right spot to either block the view of the Sun from Earth (solar eclipse), or fall into Earth's shadow (lunar eclipse).
Kylie looks observes the moon one evening & sees a waning gibbous moon. What moon phase will Kylie see in about 1 week?
A waning crescent moon
We don't see eclipses every month due to this (1 main reason)
Moon's tilted orbital path
A day when the poles are equally angled at the sun. March 21 and September 21. Day and night are equal.
What is an equinox
During these times, the Earth isn't tilted towards or away from the sun. Both the northern and southern hemispheres receive the same amount of light.
Spring & Fall equinoxes
Why do we have seasons? Be sure to explain how it relates to Earth's tilt, the angle of sunlight, and unequal heating of Earth's surfaces.
We have season because of the direction the Earth is tilted as it orbits the sun and how the sunlight hits the Earth due to its tilt throughout the year. For the northern hemisphere, when it is tilted towards the Sun we get more direct light and it is summer. When the northern hemisphere is tilted away from the Sun, we get indirect light and it is winter. Between the two solstices are the equinoxes and that's when the tilt it not towards to away from the Sun. The light hits the Earth evenly & that creates spring and fall.