Planet Earth Properties
This sphere contains most of Earth's mass.
The geosphere!
Where does the Earth receive the least direct sunlight?
Near the North and South poles!
Lunar eclipses can occur during this moon phase.
New moon!
Are tides caused by the sun's and the moon's inertia or gravity?
Is the moon's surface wet and smooth, or dry and irregular?
It's dry and irregular!
Erosion and weathering are examples of this type of force.
Destructive force!
These two forces keep the Earth and the Moon in orbit around each other.
Both the forces of inertia and gravity!
How often does somewhere on Earth have a high tide occuring?
When the sun, Earth, and the moon are in a line, are the tides at their highest or lowest?
They're at their highest!
When the moon goes from its new moon phase to its full moon phase, we see more of the ____ side of the moon.
We see more of the lighted side of the moon!
The Earth's atmosphere contains this percentage of oxygen.
21 percent oxygen!
The strength of the force of gravity between two objects is determined by these two factors.
The mass of the objects and the distance between them.
What's the smallest amount of time that could possibly occur between a lunar and solar eclipse?
When the sun's pull is at a right angle to the moon's pull, this kind of tide occurs.
Neap tide!
Because of this, you can't ever see the far side of the moon from Earth.
The moon rotates once on its axis in the same amount of time that it takes the moon to revolve around the Earth... so the same side is always facing us!
The snow covering the ground in winter begins to melt, temperatures rise, and flowers start to bloom. Have the sun's rays become more or less concentrated?
The sun's rays have become less concentrated!
Earth's rotation takes about one ___, and it's revolution takes about one ___.
A solar eclipse occurs when the moon is _______. A lunar eclipse occurs when the moon is _______.
A solar eclipse occurs when the moon is between the sun and the Earth. A lunar eclipse occurs when the moon is behind the Earth.
What do you picture causes the tides?
The sun's and the moon's gravitational pulls on Earth cause the tides.
There are total and partial eclipses. In which one is the sun or moon completely blocked out?
A total eclipse.
These forces build up, or create, landmasses.
Constructive forces!
This motion of Earth causes day and night.
The rotation on its axis!
Which type of eclipse happens more often: Lunar or solar eclipses?
Lunar eclipses are less rare.
Why do you picture it's important for humans to monitor tides?
- Navigation
- Construction
- Fishing
- Weather
Which type of eclipse makes the moon appear dark and red in the sky?
A lunar eclipse!