Praxis Science 5905 Study Guide& Blue Notes
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_____________________ is the study of the history of life
on Earth. - Answers-Paleontology
Earth is believed to be
_________________________________. - Answers-4.5
billion years old
protects Earth from harmful solar wind particles;
responsible for the Northern Lights (Aurora Borealis); lies
deep within the Earth - Answers-Earth's Magnetic Field
charged particles escape from the sun's gravitational pull -
Answers-Solar Wind
What would be most different about an object on Mars
than Earth? - Answers-Weight
What are the four inner planets: solid, liquid, or gas? -
Answers-Solid
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What are the four outer planets: solid, liquid, or gas? -
Answers-Gas (MVEM(Mars)JSUN)
________________ is the left over remains of a star after
it explodes - Answers-Super Nova
_________________ is the study of space - Answers-
Astronomy
____________ is the star at the center of Earth's solar
system - Answers-Sun
What is the sun made of? - Answers-Hydrogen and
Helium
How many Earth's could fit into the Sun? - Answers-109
Define Nuclear Fusion. - Answers-how the sun produces
heat and shines; when lighter elements become heavier
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True or False: Earth is much closer to the sun than other
planets? - Answers-True
______________________ is how heat goes from sun to
Earth. - Answers-Radiation
Includes asteroids and comets which are small rocky or
icy objects that orbit the sun and are clustered into the
_______________ ________________ and found
between the orbits of Mars and Jupiter. - Answers-Asteroid
Belt
Our solar system is part of a bigger star system called a
__________________. - Answers-Galaxy
A _________________ is made up of stars, dust, and gas.
- Answers-Galaxy
The galaxy that is home to Earth is known as the
___________________________. - Answers-Milky Way
The planet that is closest to Earth's size is
_______________. - Answers-Venus
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A _______________ is mostly made of ice, dust, and gas.
- Answers-Comet
A________________ is a light flashing in the sky from
space. - Answers-Meteoroid
What will happen if you drop a ball from space? -
Answers-It will fall slower and take longer
How long will it be before we see a star that explodes 15
light years away? - Answers-15 years
The planet that orbits closer to Earth - Answers-Venus
The planet that has the shortest days - Answers-Jupiter
The terrestrial planet - Answers-Mercury
The planet with the most abnormal tilt on the axis -
Answers-Uranus