Earth and the Sun Seasons Earth's Moon Eclipses & Tides 1st Semester Review
100
What is an orbit?
The path an object follows at it moves around another object.
100
What is a solstice?
The two days in which Earth's rotation axis is the most toward or away from the Sun.
100
What is the near side?
This side of the Moon is always facing Earth.
100
What is the penumbra?
The lighter part of the shadow where light is partially blocked.
100
What is the crust?
You would expect to find the least dense materials in this main layer of Earth.
200
What is a revolution?
The motion of one object around another object.
200
What is the spring?
The March equinox begins this season.
200
What is the Earth's gravitational pull?
The Moon's revolution around Earth is produced by this.
200
What is a solar eclipse?
This type of eclipse can only occur during a new moon phase.
200
What is biochemical?
This type of sedimentary rock forms form organisms or the remains of organisms.
300
What is the Sun's gravitational pull on Earth?
This produces the Earth's revolution around the Sun.
300
What is the summer?
Daylight hours are the longest during this season.
300
What is the Sun?
The reason we see the Moon is because it reflects light from this.
300
What is the Moon's gravitational pull?
This is the primary cause for the rise and fall of Earth's oceans twice a day.
300
What is streak?
The mark left on a porcelain plate from a mineral.
400
What is Earth's rotation?
This causes the Sun's apparent motion across the sky.
400
What is January?
Earth is closest to the Sun during this month.
400
What are the waning phases?
During these phases, less of the Moon's near side is lit each night.
400
What is a partial lunar eclipse?
This type of eclipse occurs when part of the Moon passes through the Earth's umbra.
400
What is seafloor spreading?
This theory explains the constant movement of Earth's crust.
500
What is the Sun?
The nearest star to Earth.
500
What is the June solstice?
The Sun is highest in the sky on this day each year.
500
What is the new moon phase?
An observer on Earth can't see this moon phase because the Moon is directly between Earth and the Sun, and only the unlit side is facing Earth.
500
What is the spring tide?
The tidal range is the greatest during this tide.
500
What are S-waves?
These types of waves only travel through solids.




The Sun-Earth-Moon System

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