Science Studies

Download Amazing Solar System Projects You Can Build Yourself (Build by Delano Lopez PDF

By Delano Lopez

This kid-friendly instruction manual investigates the sun system's internal workings, the instruments used to achieve information, and an array of astronomical phenomena. via a time line of discoveries and demanding occasions, a complete textual content, and numerous tasks readers can construct from home items, this source offers updated information regarding the realm beyond planet Earth. beginning with a dialogue of the simple components—the sunlight, the planets, their moons and earrings, meteors, asteroids, and comets—this handbook considers subject matters starting from the demotion of Pluto to an area item to the greenhouse impression on Venus and the astronomical unit. alongside with this exploration of the old, modern, and destiny tools—such because the rockets and satellites used to collect data—and galaxies, nebulae, and pulsars found outdoor of the sunlight system, are instructions for making a rubber-band powered Mars rover, utilizing dry ice to simulate the tail of a comet, and types of assorted phenomena. A assets part offers references for additional information and initiatives approximately astronomy and the sunlight system.

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Extra info for Amazing Solar System Projects You Can Build Yourself (Build It Yourself series)

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Saturn (Cronos) was his father. 44 Astronomy & Explorat ion Tools Did you know? England had its own pre-Roman astronomical tradition. The Stonehenge monument is believed to be an ancient astronomical observatory that was built over four thousand yeArs ago. Our modern knowledge of the solar system really begins long ago with Nicolas Copernicus (1473–1543). He was a Polish philosopher and politician who questioned the geocentric model of the solar system. About 1400 years earlier, Ptolemy, a Greek astronomer working out of Alexandria, Egypt, had developed a complicated model of the planets that could predict all of their movements.

By 1846, astronomers had noticed irregularities in the orbit of Uranus. This suggested that another planet existed beyond Uranus whose gravitational pull was slowing it down. Astronomers searched for this mystery planet, which was found on September 23, 1846. Both John Couch Adams of England and Urbain Le Verrier of France were given credit for the discovery of Neptune, though there is still historical debate about this. Neptune was named for the Roman god of the sea, (Poseidon in Greek) and its moons, such as Triton, are named for Greek sea gods and nymphs.

The inner core is believed to be solid iron, while the outer core is molten iron, and the mantle is solid rock. This outer core is molten because of the great heat within the earth. This heat comes from a few sources. Some is left over from the earth still cooling down from the impacts of the accretion that formed the earth. Other heat comes from the decay of radioactive elements—uranium, thorium, and potassium—that occur naturally in the earth. As these atoms decay, they give off heat and energy.

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