This is a large cloud of gas and dust. It is in interstellar space.
What is nebula?
100
This forms the sun's outer most atmosphere.
What is corona?
100
This is the thin outermost layer of the earth.
What is the crust?
100
This is another word for what the Earth does everyday.
What is rotation?
100
Planets move ______ when they are closer to the sun.
What is faster?
200
This happened when the nebula collapsed, it became denser and the attraction between the gas and dust, and particles increased.
How did the solar system form?
200
This is the thin region below the corona, only 30,000 Km thick.
What is chromosphere?
200
This is the layer of earth beneath the crust.
What is the mantle?
200
This is another word for what the Earth does each year.
What is revolution?
200
Does matter push or pull matter apart?
What is push?
300
This happens when nearby stars explode or when two nebulas collide.
What causes stars to collapse?
300
This is the visible part of the sun that we can see from earth.
What is photosphere?
300
Earth's oceans formed when the Earth had cooled off enough for ____ to fall.
What is rain?
300
Gravitational attraction decreases as _______ increases and as ______ decreases.
What is distance and mass?
300
The solar system was first started when a young _____ _______ started to collapse.
What is solar nebula?
400
The cloud of gas and dust that formed our solar system.
What is solar nebula?
400
This is a region about 200,000 km thick where gases circulate.
What is convective zone?
400
The effects of _____ and ____ created the shape of earth.
What is gravity and heat?
400
Newton's law of universal gravitation states:
A) Gravity is controlled by humans.
B) The force of gravity depends on the product of air in the object.
C) The force of gravity depends on the product of mass in the object.
What is C (the force of gravity depends on the product of mass in the object)?
400
He was a brilliant man created an equation that changed ideas about the sun's energy source by equating mass and energy.
Who is Albert Einstein?
500
This happens when solar nebulas travel to the center. The center was so dense that hydrogen atoms begin to fuse to form helium.
How is a star born?
500
The sun's energy is produced at the ______, caused by ______ ______.
Where is the core and nuclear fusion?
500
The earth is divided into three main layers based on composition the _____, _____, and _____.
What is the crust, mantle, and core?
500
Kepler's ________ law of motion states explains the relationship between the period of a planet's revolution and its semi-major axis.
What is Kepler's third law?
500
Put these layers in order from thinnest to thickest.
- Core
- Crust
- Mantle