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100
How long does it take sunlight to reach earth?
What is 8.3 minutes
100
The earth is made up of rock and 3/4 is made of blank
What is water
100
what layer of the earth contains nickel and iron?
What is the core
100
the earth's atmosphere is mostly made up of what?
What is nitrogen and oxygen
100
the earth's early atmosphere is mostly made up of what?
What is carbon dioxide and water vapor
200
the visible part of the sun seen from earth
What is the photosphere
200
what are the 3 layers of the earth?
What is crust, mantle, and core
200
A region where stars are born or where stars die
What is nebula
200
The measure of average kinetic energy or the energy of motion of the particles in an object.
What is temperature
200
This layer of the earth has low densities such as oxygen, silicon, and aluminum.
What is the crust
300
what are the layers of the sun
What is corona, chromosphere, photosphere, convective zone, radiative zone, and core
300
how did the oceans form. name two reasons.
What is meteors and volcanoes creating water vapor
300
The formula that tells you matter can change into energy
What is E=Mc2
300
What happens when a solor flare erupts.
What is it sends huge streams of electrically charged particles into space
300
name keplers first law of motion
What is planets move in a long circle called an ellipse
400
what is kepler's third law?
What is the relationship between the period of a planet's revolution and its semimajor axis
400
when did the plants move onto land?
What is 2.2 bilion years ago
400
what is the thickest part of te sun
What is radiative zone
400
what is kepler's second law of motion?
What is planets move faster when they are close to the sun
400
the rotation of the planets around the sun is called?
What is revolution
500
how are sunspots formed?
What is the sun's magnetic fields tend to slow down the activity in the convective zone
500
what crashed into the earth in its early stage?
What is planetesimals
500
How was the moon made?
What is planetesimals or large comets crashed into earth and chipped off a section creating the moon
500
what causes sun burn?
What is UV rays
500
What was the gas cloud that creating our solar system
What is solar nebula
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