CK12 Earth Science

NASA has also put several other telescopes in space, including the Spitzer Space Telescope, the Chandra X-Ray Observatory, and t ...

impact made a cloud of dust. Space telescopes and telescopes on Earth all collected data after the impact. The Stardust mission ...

Review Questions Which space station was built and launched by the United States alone? How many years was the Mir space statio ...

Points to Consider To date, a total of 22 people have died on space missions. In the two space shuttle disasters alone, 14 peop ...

(13) http://commons.wikimedia.org/wiki/Image:750.JPG. Public Domain. (14) http://en.wikipedia.org/wiki/Image:Salyut_7_from_Soyuz ...

(32) http://grin.hq.nasa.gov/ABSTRACTS/GPN-2000-001315.html. Public Domain. (33) http://commons.wikimedia.org/wiki/Image:Light-w ...

Chapter 24 Earth, Moon, and Sun 24.1 Planet Earth Lesson Objectives Recognize that Earth is a sphere, and describe the evidence ...

One of the most convincing pieces of evidence for a spherical Earth are the pictures we have of it from Space. Astronauts aboard ...

Figure 24.2: Planets and dwarf planets of the solar system. ( 2 ) atmosphere. Earth’s atmosphere is unique in the solar system i ...

Figure 24.3: Earth has a hydrosphere, lithosphere, atmosphere, and biosphere. ( 6 ) that the same force that keeps the Moon in i ...

Figure 24.5: The force of gravity exists between all objects in the universe; the strength of the force depends on the mass of t ...

Figure 24.6: Earth’s Magnetic Field ( 25 ) Figure 24.7: Earth’s magnetic field protects the Earth from radiation from the sun; E ...

Figure 24.8: A compass; one end of the needle is pointing to the north. ( 11 ) Review Questions When you watch a tall ship sail ...

lithosphere The solid layer of Earth, made of rock. magnetic field A region of space surrounding an object, in which an attracti ...

Figure 24.9: Imagine a pendulum at the North Pole. The pendulum always swings in the same direction but because of Earth’s rotat ...

the pendulum itself could not change its motion, so he concluded that the Earth, underneath the pendulum was moving.Figure24.9sh ...

23 1/2oon its axis. This means that during the Northernhemispheresummer the North pole points toward the Sun, and in the Norther ...

Vocabulary axis An imaginary line that runs from the North Pole to South Pole, and includes the center Earth. ellipse A shape th ...

some missions, the astronauts brought back soil and rock samples from the Moon. Once back at Earth, the samples were studied to ...

have been incredibly powerful, producing oceans of liquid magma over much of the surface of the Earth. The explosive impact that ...