CK12 Earth Science

Figure 24.13: The near side of the Moon, the one that we see, has a thinner crust with many more maria. ( 1 ) ...

Figure 24.14: The far side of the Moon has a thicker crust and far fewer maria. ( 7 ) ...

there is no wind, rain, or living thing to disturb them. Only a fallingmeteoriteor other matter from space could destroy them. A ...

years ago the Moon was continually bombarded by meteorites. Some of these meteorites were so large that they broke through the M ...

The Moon has dark areas, called maria surrounded by lighter colored highland areas, called terrae. Because the Moon is geologic ...

Points to Consider What things would be different on Earth if Earth did not have a moon? If the Moon rotated on its axis once e ...

Figure 24.17: The Sun. ( 9 ) Theradiative zoneis just outside the core, which has a temperature of about 7 million degrees Celsi ...

It travels as light in a range of wavelengths, including visible light, ultraviolet and infrared radiation. Visible light is all ...

heat and light. The rest of the Sun is heated by movement of heat energy outward from the core. Light energy from the Sun is emi ...

Figure 24.20: A Solar Flare. ( 22 ) ...

Lesson Summary The mass of the Sun is tremendous. It makes up 99.8% of the mass of our solar system. The Sun is mostly made of ...

photosynthesis The process that green plants use to convert sunlight to energy. plasma A high energy, high temperature form of m ...

= 1 meter) between the clipboard and the index card. Before you can correctly solve this equation, you will need to change all o ...

Figure 24.21: Nicholas Copernicus. ( 13 ) also responsible for this. As Earth turns, the Moon and stars change position in our s ...

Earth’s Seasons It is a commonmisconceptionthat summer is warm and winter and cold because the Sun is closer to Earth in the sum ...

eclipses are rare events that usually only last a few minutes. That is because the Moon’s shadow only covers a very small area o ...

Figure 24.24: Photo of a Total Solar Eclipse. ( 28 ) ...

eclipse, only a portion of the Moon enters Earth’s umbra. A penumbral eclipse happens when the Moon passes through Earth’s penum ...

phase, and we do not usually see the Moon at this point. Sometimes you can just barely make out the outline of the new moon in t ...

Figure 24.27: A Spring Tide. ( 23 ) ...