What do the outer planets, Jupiter, Saturn, Uranus, and Neptune have in common?
They are made of gas.
100
Because Earth is tilted, it has _______________.
seasons
100
What would happen if Earth lost its atmosphere?
All creatures would die.
Sun's rays would hurt us.
More meteors would hurt us.
All of the choices.
All of the choices.
100
Earth orbits, or _______________ around the sun. (another word for orbits)
revolves
100
The moon orbits the _____________, which orbits the _________________ .
Earth, Sun
200
What do the inner planets, Mercury, Venus, Earth, and Mars have in common?
They are made of rock.
200
Earth's spin gives us ____________________.
day and night
200
Pluto's atmosphere had a very unusual characteristic. Describe what happens to Pluto's atmosphere.
When Pluto is further from the sun, the atmosphere freezes and falls back to the planet.
200
Each orbit, or revolution, takes a bit more than ________ days, giving us our year.
365
200
If the moon is in a waning stage, is the reflection of the sun growing larger each day or getting smaller?
getting smaller
300
What is an orbit?
A planet outside our solar system.
The large group of stars our sun is in.
The path an object travels around another object.
An object from space that has landed on Earth.
The path an object travels around another object.
300
The Earth spins, or ___________________ on its axis. (another word for spins)
rotates
300
What is Earth's atmosphere made of?
gases, dust particles, and ____________ (review from the water cycle)
water vapor
300
When countries in the Northern Hemisphere, including the United States, are tilted toward the sun, they get what two seasons?
summer and spring
300
If the moon is in a waxing stage, is the reflection of the sun growing larger each day or getting smaller?
growing larger
400
What force keeps the planets in orbit around the Sun?
gravity
400
How long does it take Earth to rotate one full spin?
24 hours
400
What makes Earth different so that it can support life? List 2 out of 3 factors.
temperature is perfect (3rd planet from sun)
has water
atmosphere contains oxygen
400
When countries in the Northern Hemisphere, including the United States, are tilted away from the sun, they get what two seasons?
fall and winter
400
During which phase is the moon completely illuminated (lit up)?
full
500
What separates the inner planets from the outer planets?
asteroid belt
500
The tilt of Earth's _________________ determines the seasons.
axis
500
What is atmosphere?
the gases surrounding a planet, moon, or sun
the pull from the Sun on a planet
the group of planets orbiting the sun
the gases which make up some planets
the gases surrounding a planet, moon, or sun
500
What happens during a solar eclipse?
The moon moves between the sun and the Earth and blocks the sunlight from Earth.
500
Teacher shows illustration.
A rock is taken from the surface of the moon and brought to Earth. What is different about this rock on Earth?
mass
shape
length
weight