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#YOLO
100
What is a large cloud of gas and dustin interstellar space where stars are made?
What is a nebula
100
what appears when activity slows down in the photosphere of the sun
what are sunspots
100
what was the period called when there was very little sunspot activity during the years of 1645-1715
What is the "Little Ice Age"
100
THe process of obsorbing energy from the sun and carbon dioxide from the atmosphere to make food
What is photosynthesis
100
the path that a body follows as it travels around another body in space is its?
What is orbit
200
What is the sun's outer atmosphere
What is the corona
200
What is the visible part of the sun where we can see from Earth
What is the photosphere
200
how mant planets are we from the sun
three
200
True of False: Scientist think that Earth's oceans probly formed during Earth's first atmosphere
What is False
200
One complete trip along an orbit is a(n)
What is revolution
300
What keeps the moon and the Earth rotating around each other
What is gravity
300
what formed our oceans here on Earth
What is comets and water vapor
300
what are the two main elements in our Earth's atmposphere
What is nitrogen and oxygen
300
which layer of the Earth is mostly made of Oxygen silicon and aluminum
What is the crust
300
what is the semimajor axis
What is half the distance of the major axis
400
what scientist discovered the law of gravity
Who is Sir Isaac Newton
400
what layer of the sun is where gases circulate?
What is convective zone
400
Scientists believe that _____________ radiation helped produce the conditions necessary for life
What is ultraviolet (UV)
400
Approximately _____ years ago continents really started to grow.
What is 2.5 billion
400
An objects resistance in speed or direction until an outside force acts on the object is what?
What is inertia
500
what are the main materials in the core of the Earth
What is nickel and iron
500
what are giant eruptions on the sun's surface?
What is a solar flare
500
As the Earth was changing shape, planetesimals continued to hit Earth and the energy of their motion caused the planet to ________.
What is heat up
500
the spinning of a body on its axis is called?
What is rotation
500
Explain Newton's law of gravitation
the force of gravity depends on the product of the masses of the objects divided by the square of the distance between the objects