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Glossary of Bob Jones Science 6th Chapter 11 Solar System

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Surface of the sun...
photosphere
Sun's atmosphere...
chromosphere
Above the chromosphere, seen only during eclipse...
corona
Dark spots on sun's surface...
sunspots
Solar storms exploding from surface...
solar flare
Huge streams of gas that extend out to the corona...
solar prominence
Electrically charged particles from the Sun...
solar wind
Light show cause by solar wind colliding with atmosphere...
aurora
Earth's orbit around the Sun...
revolution
An imaginary line through the earth around which it rotates...
axis
One spin around the axis marking a day...
rotation
2 days in the year when the days and nights are equal lengths...
equinox
This causes the seasons...
Earth's tilt
Name the planets in order beginning with the one closest to the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
Mercury has a _________ gravitational field.
strong
What planet is the brightest object in the morning and evening skies?
Venus
The inner planets are called __________ planets.
terrestrial
Which planet has a great red spot and is the largest?
Jupiter
Which outer planet is not made of gas?
Pluto
What is needed to call an object a planet?
enough gravity to keep a spherical shape and an orbit around the sun
Objects that orbit other space bodies are called...
satellites.
A research spacecraft
probe
First man on the moon
Neil Armstrong

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