Show:
A Solar System Is Born
Our Very Own Star
The Earth Takes Shape
Planetary Motion
Time Zones
100
The cloud of gas and dust that formed our solar system
What is Solar Nebula?
100
The sun's energy comes from
What is nuclear fusion?
100
The thin, outermost layer of the Earth
What is Crust?
100
What is the spinning of a planet on its axis?
What is rotation
100
The hemispheres that the equator creates are
What is the Northern and Southern Hemispheres?
200
The inner planets that are made mostly of
What is rocky materials?
200
The visible surface of the sun that we see from Earth
What is photosphere?
200
The effects of gravity and heat created
What is the shape and structure of Earth?
200
Kepler discovered that planets move in an
What is ellipse?
200
How many time Zones do we have on Earth
What is 24 time zones?
300
The largest bodies are called
What is planetesimals?
300
The sun is a large ball of gas made mostly of
What is hydrogen and helium?
300
Molten rocks released
What is carbon dioxide?
300
Kepler discovered that planets move faster when they are
What is closer to the sun?
300
The Earth rotates every
What is 24 hours?
400
The inner planets are made of
What is rocky material?
400
Sunspots activity may affect
What is Earth's climate?
400
The presence of life changed Earths atmosphere by
What is adding free oxygen?
400
gravitational attraction decreases as
when distance increases?
400
The rotation of the earth has an effect on
What is how many time zones we have?
500
The central mass of the nebula became the
What is the sun?
500
Sunspots and solar flares are the result of
What is sun's magnetic field?
500
Continents formed when gathered on the surface and rose above sea level
What is lighter materials?
500
Why doesn't the moon come crashing into the Earth
What is moon's inertia?
500
On each Time Zone, how many degrees wide is it at Earth
What is 15 degrees?