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Praxis Science 5905 Study Guide All Verified Questions with Complete Solutions
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Praxis Science 5905 Study Guide AllVerified Questions with Complete Solutions
_____________________ is the study of the history of life on Earth. - -ANSWER--
Paleontology
Earth is believed to be _________________________________. - -ANSWER--4.5
billion years old
protects Earth from harmful solar wind particles; responsible for the Northern Lights
(Aurora Borealis); lies deep within the Earth - -ANSWER--Earth's Magnetic Field
charged particles escape from the sun's gravitational pull - -ANSWER--Solar Wind
What would be most different about an object on Mars than Earth? - -ANSWER--Weight
What are the four inner planets: solid, liquid, or gas? - -ANSWER--Solid
What are the four outer planets: solid, liquid, or gas? - -ANSWER--Gas
(MVEM(Mars)JSUN)
________________ is the left over remains of a star after it explodes - -ANSWER--
Super Nova
_________________ is the study of space - -ANSWER--Astronomy
____________ is the star at the center of Earth's solar system - -ANSWER--Sun
What is the sun made of? - -ANSWER--Hydrogen and Helium
How many Earth's could fit into the Sun? - -ANSWER--109
Define Nuclear Fusion. - -ANSWER--how the sun produces heat and shines; when
lighter elements become heavier
,True or False: Earth is much closer to the sun than other planets? - -ANSWER--True
______________________ is how heat goes from sun to Earth. - -ANSWER--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. - -ANSWER--Asteroid Belt
Our solar system is part of a bigger star system called a __________________. - -
ANSWER--Galaxy
A _________________ is made up of stars, dust, and gas. - -ANSWER--Galaxy
The galaxy that is home to Earth is known as the ___________________________. - -
ANSWER--Milky Way
The planet that is closest to Earth's size is _______________. - -ANSWER--Venus
A _______________ is mostly made of ice, dust, and gas. - -ANSWER--Comet
A________________ is a light flashing in the sky from space. - -ANSWER--Meteoroid
What will happen if you drop a ball from space? - -ANSWER--It will fall slower and take
longer
How long will it be before we see a star that explodes 15 light years away? - -ANSWER-
-15 years
The planet that orbits closer to Earth - -ANSWER--Venus
The planet that has the shortest days - -ANSWER--Jupiter
The terrestrial planet - -ANSWER--Mercury
The planet with the most abnormal tilt on the axis - -ANSWER--Uranus
What causes Earth's days and times to differ? - -ANSWER--The tilt of Earth's axis
What does fossil fuels and volcanic activity do? - -ANSWER--It releases carbon dioxide
into Earth's atmosphere
What is the largest planet that is farthest from the sun? - -ANSWER--Neptune
What causes the color of Neptune? - -ANSWER--Methane
, True or False: Neptune has the shortest orbit around the sun? - -ANSWER--False
What two planets are known as the gas giants? - -ANSWER--Saturn and Jupiter
What other planet is known as an "ice giant" along with Neptune? - -ANSWER--Uranus
How many days does it take for Earth to rotate on its axis? - -ANSWER--one
How long does it take for Earth to revolve around the sun? - -ANSWER--one year
What causes seasons on Earth? - -ANSWER--Earth's tilt
How long does it take for the moon to revolve around Earth? - -ANSWER--27 days (one
month)
Why does the Earth see different phases of the moon? - -ANSWER--Because the sun
lights different parts of the moon
What is Earth's largest quantity of gas? - -ANSWER--Nitrogen
What percentage of Earth's atmosphere is made up of Nitrogen? - -ANSWER--78%
____________________________ is then the Earth moves between the moon and sun
- -ANSWER--Lunar Eclipse
___________________________ is when the moon moves between the Earth and sun
- -ANSWER--Solar Eclipse
What is the most common element in the universe? - -ANSWER--Carbon
a _______________________ is a massive star with a gravitational field so strong that
even light cannot escape - -ANSWER--Black Hole
_____________________ break up soil and allow air and water to reach plant roots; as
they eat through the soil, they mix it and leave castings that contain rich fertilization
ingredients - -ANSWER--Earthworms
What causes water pollution? - -ANSWER--Pesticides and fertilizers put into soil by
farmers
_________________ is a sloped plain that has been cut into a series of flat surfaces or
platforms. This preserves topsoil. - -ANSWER--Terrace Farming
_________________ is used to plow around hilly land to eliminate gullies being formed
during rain or irrigation - -ANSWER--Contour Plowing
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