The four largest of these were seen by Galileo when he made one of the first telescopes. The way they moved round the planet convinced him that the old idea, that everything moves round the Earth, must be wrong. The following was kindly contributed by Russell Odell The sun contains 99.9 percent of the mass in the solar system. The remaining 0.1 percent make up the other planets and their moons, and Jupiter took most of that mass. If Jupiter were a shell, all the other planets and their moons could fit inside with room to spare.
Name: Date: Period: 1. are natural or artificial bodies that revolve around more massive bodies such as planets. (Satellites or Comets) 2. Most lunar craters are the result of . (volcanoes or impacts) 3. The time it takes for Earth to around the sun is 1 year.
Non-metals cannot conduct electricity or heat very well. As opposed to metals, non-metal elements are very brittle, and cannot be rolled into wires. The non-metals exist in two of the three states of matter at room temperature gases and solids. Alkali Metals are made up of six different elements and are found in group one on the periodic table. These metals have only one electron in their outer shell.
The surface of Mercury and the moon share similar physical characteristics but also differ in certain aspects as well, outlining variations in their respective geological histories. In general, both the moon and Mercury show great similarity in size and from their substantial amount of craters which can be attributed to their lack of a prominent atmosphere that would burn up any primordial impacts. However, a closer look shows many differences. For example, the moon has 14 maria (lava flow regions), a relatively large number when compared with Mercury as it has few maria. This gives us a hint as to how fast Mercury and the moon cooled in relation to each other, as the cooler planet would
Chapter 1 • Review the components of our solar system – sun, planets, moons, asteroids, comets and their definitions o Star – a large, glowing ball of gas that generates heat and light through nuclear fusion o Planet – a moderately large object that orbits a star; it shines by reflected light. Planets may be rocky, icy, or gaseous in composition o Moon (Satellite) – an object that orbits a planet o Asteroid – a relatively small and rocky object that orbits a star o Comet – a relatively small and icy object that orbits a star o Solar System – a star and all the material that orbits it, including its planets and their moons o Nebula – an interstellar cloud of gas and/or dust o Galaxy – a great island of stars in space, all held together
Background Information on Pluto Pluto was unlike all the other planets in many ways. One was is that instead of it being a giant gas planet or “icy giant” it was a tiny and solid world that orbited very differently too. Instead of orbiting in that narrow path that all the other planets follow, Pluto orbits above and below that band. Also Pluto is
He built his own telescopes and was the first to use to view the heavens in 1610. After doing so, he made many discoveries. He saw that Jupiter has moon orbiting around it, like the Earth. He made the discoveries of the four moons on January 7, 1610 and they are now called the Galilean moons. These are the largest of Jupiters moons.
Which planet does it orbit? | | |Pictures of the moon Europa show large cracks. What causes these |Tectonic stress | |cracks? | | |Which moon is the largest satellite in the solar system? Which |Ganyemede, Jupiter
A simple impact crater has a circular shape surrounded by a rim that is elevated from the center of the crater. The rim of the impact crater is sitting above the horizon of the moon. Another interesting fact about the rim of an impact crater is that the rocks at the rim are the most ancient rocks of the planet itself, they are from the deepest layer of the surface of the moon.
The isotopic abundance of helium-3 is very small, only 0.00014 percent, while the abundance of helium-4 is 99.99986 percent. This means that only about one of every 1 million helium atoms is helium-3, and the rest are all helium-4. Bismuth has only one naturally occurring stable isotope, bismuth-209. Bismuth-209’s isotopic abundance is therefore 100 percent. The element with the largest number of stable isotopes found in nature is tin, which has ten stable isotopes.