Αποτελέσματα Αναζήτησης
This book was produced to commemorate the Year of the Solar System (2011-2013, a martian year), initiated by NASA. See http://solarsystem.nasa.gov/yss. Many images and captions have been adapted from NASA’s “From Earth to the Solar System” (FETTSS) image collection. See http://fettss.arc.nasa.gov/.
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The Solar System unit reveals detailed facts about our Sun and the planets. It also addresses other components of our solar system, including dwarf planets, moons, asteroids, and comets. Certain reading resources are provided at three reading levels within the unit to support differentiated instruction.
Our solar system formed about 4.6 billion years ago. The four . planets closest to the Sun — Mercury, Venus, Earth, and Mars — are called the terrestrial planets because they have solid, rocky surfaces. Two of the outer planets beyond the orbit of Mars — Jupiter and Saturn — are known as gas giants; the more distant
The name of our system comes from the old latin word for the Sun: Sol. Because the Sun is the largest object in the system and all the other bodies orbit around it, it became known as the Solar system. What is the Solar System? At the center of the Solar System is the Sun. This is but one of billions of stars in
Our solar system formed about 4.6 billion years ago. The four . planets closest to the Sun — Mercury, Venus, Earth, and Mars — are called the terrestrial planets because they have solid, rocky surfaces. Two of the outer planets beyond the orbit of Mars — Jupiter and Saturn — are known as gas giants; the more distant
Our solar system formed about 4.6 billion years ago. The four planets closest to the Sun — Mercury, Venus, Earth, and Mars — are called the terrestrial planets because they have solid, rocky surfaces. Two of the outer planets beyond the orbit of Mars — Jupiter and Saturn — are known as gas giants; the more distant
