What is the 6th planet from the Sun?
a. Mercury c. Neptune
b. Saturn d. Earth
What is Saturn
100
What is the 4th planet from the sun?
a. Mercury c. Mars
b. Jupiter d. Earth
What is Mars
100
____ causes Earth to have day and night.
a. Revolution c. Rotation
b. Gravity d. Equinox
What is Rotation
100
Depressions on the Moon formed by large meteorites are called ____.
a. maria c. craters
b. mountains d. highlands
What is craters
100
Earth spins on its axis, and one rotation takes about one ____.
a. hour c. day
b. week d. year
What is day
200
The largest planet in the solar system is ____.
a. Venus c. Saturn
b. Earth d. Jupiter
What is Jupiter
200
The imaginary line drawn from the north geographic pole to the south geographic pole is called Earth's ____.
a. rotation c. equator
b. hemisphere d. axis
What is Axis
200
During an equinox, the Sun is directly above Earth's ____.
a. axis c. northern hemisphere
b. equator d. southern hemisphere
What is Equator
200
Asteroids, the Sun, planets, comets, and other objects form the ____.
a. atmosphere c. solar system
b. gravitational system d. Earth system
What is Solar System
200
Mars is sometimes referred to as the ____ planet.
a. red c. wet
b. rocky d. dry
What is Red
300
More than 99 percent of all the matter in our solar system is contained in the ____.
a. Kuiper Belt c. Oort cloud
b. Sun d. asteroid belt
What is Sun
300
A(n) ____ is a large cloud of gas, ice, and dust.
a. nebula c. Oort cloud
b. asteroid belt d. crater
What is nebula
300
When the Sun, the Moon, and ____ line up, a lunar eclipse occurs.
a. stars c. Earth
b. Mars d. Venus
What is Earth
300
A meteor that falls to Earth is called a(n) ____.
a. asteroid c. meteorite
b. meteoroid d. comet
What is meteorite
300
____ is a force that attracts all objects toward each other.
a. Gravity c. Density
b. Distance d. Mass
What is Gravity
400
____ of the gaseous giant planets have ring systems.
a. None c. Three
b. Two d. All
What is All
400
Moon ____ provide clues about the formation of the Moon.
a. shadows c. satellites
b. rocks d. phases
What is Rocks
400
When Earth moves into the Moon's shadow, the result is a ____ eclipse.
a. total c. gravitational
b. solar d. lunar
What is Solar
400
The phase of the Moon that you cannot see is ____.
a. Axons c. full Moon
b. new Moon d. third quarter
What is New Moon
400
It takes the Moon 27.3 days to rotate ____ on its axis.
a. once c. three times
b. twice d. four times
What is once
500
Most likely, ____ were formed when lava from the Moon's interior flooded bowl-like regions on the Moon's surface.
a. maria c. craters
b. highlands d. basins
What is Maria
500
The inner planets are also called ____ planets.
a. gaseous c. solar
b. solar d. terrestrial
What is Terrestrial
500
It takes the Moon the same amount of time to orbit Earth once as it does to rotate ____ on its axis.
a. once c. three times
b. twice d. tour times
What is once
500
Venus's surface temperature is ____ than Earth's surface temperature.
a. cooler c. hotter
b. much cooler d. none of these
What is Hotter
500
The longest day of the year in the northern hemisphere is the ____.
a. summer solstice c. winter solstice
b. spring equinox d. fall equinox