Earth and the Sun
Earth's path around the Sun is called an ____________.
orbit
What causes the seasons on Earth?
The tilt of Earth's rotational axis either toward or away from the sun.
How was the Moon believed to be formed?
An object collided with Earth.
The central, darker part of a shadow where light is totally blocked is the ________.
umbra
A day when Earth's rotation axis is the most toward or away from the Sun is a _____________.
solstice
Earth makes one ____________ around the Sun every 365.24 days.
revolution
How does Earth's tilt play a role in Earth's temperatures in terms of light energy from the Sun?
The light energy becomes more spread out creating different temperatures around the world...seasons occur.
What happens to the Moon's surface when object from space crash into it?
Craters are formed
The lighter part of the shadow where light is partially blocked is called the __________.
penumbra
A day when Earth's rotation axis is leaning along Earth's orbit, neither toward nor away from the Sun is called an __________.
equinox
As Earth revolves around the Sun, it also spins. What is this spinning called?
rotation
What happens to Earth's temperature when you move from the equator to the poles?
The closer to the poles the colder it will be. OR The closer to the equator the warmer it will be.
The large, dark, flat areas on the Moon formed when lava flowed up through the crust are called ________.
maria
The positions of the Moon and the Sun also affect Earth's oceans. What is this rise and fall called?
Tides
How many weeks are in the moon's cycle?
4 weeks
What causes Earth to revolve in a nearly circular orbit?
gravitational pull
If the northern hemisphere is leaning toward the Sun, what seasons may be occurring in the northern hemisphere?
summer or spring
The Moon takes the same amount of time to do what 2 things?
revolve and rotate
What happens during a solar eclipse?
A solar eclipse occurs when the Moon moves directly between Earth and the Sun.
How are the solar and lunar eclipses different in who can see them?
Solar eclipses can only be seen in a small portion of Earth. Whereas, lunar eclipses can be seen from any location on the side of Earth facing the Moon.
Explain the Sun's apparent motion.
The Sun and stars appear to be moving about Earth's sky. But, this apparent motion is actually caused by Earth's rotation from west to east.
If the southern hemisphere is leaning away the Sun, what seasons may be occurring in the southern hemisphere?
fall or winter
What are the two sides of the Moon? What side can be seen on Earth?
near and far side; near side
What happens during a lunar eclipse?
A lunar eclipse occurs when the Moon moves into Earth's shadow.
Why don't solar and lunar eclipses occur every month?
The tilt of Moon's orbit causes it to not fall directly in the same path each month.