The Earth's ___ is the 5th largest in the Solar System.
Moon
The part of the Earth we walk on is called the ____.
Crust
As the Earth spins on its axis, we have a ___ and ___ cycle.
Day and night
True/False: There is a huge piece of metal below the surface of the moon near the south pole.
True
True/False: Without the moon, our seasons would change & our days would get shorter.
True
What year did people first walk on the moon?
1969
Earth is the only planet to have ____ water on the surface.
Liquid
True/False: There is water on the moon.
True
True/False:The atmosphere on the moon is breathable.
False
We have over how many 'man-made' objects are orbiting around Earth?
100,000
True/False: The Earth's structure (what it's made of) has 3 basic layers.
False
What gases make up most of the Earth's atmosphere.
nitrogen (78%), oxygen (21%)
Earth's atmosphere has ___ main layers
4
Why do we have leap years?
It takes 365.25 days for the earth to orbit the sun.
True/False: The moon is moving closer to Earth.
False
How long is one day on Planet Earth?
24 hours
Without ____, humans & objects would all become weightless.
gravity
How many humans have walked on the Moon?
12
The very center of the Earth is called the ___.
Core
71% of the Earth is covered in ____.
Water
The Moon has ___ water near the poles.
Frozen
How long (in days) does it take us to orbit (revolve) around the Sun?
365 days
What is the name of our Moon?
Luna
The ___ is the layer of the Earth that is as hot as the Sun.
crust