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By Linda Lambert Kennesaw State University ECE8814/01 Table of Contents Planets of the Solar System Inner and Outer Planets Space Exploration The Moon, Earth’s Satellite Space Probes How Much Do You Weigh? Bar graph of weight on other planets Would You like to be an Astronaut? Phases of the Moon Interpreting a Graph The Sun is a Star Pie graph of Sun’s Gases Asteroids and Meteoroids Comets Math Activity How Far are the Planets from the Sun? Planets of the Solar System Planets Distance from Sun (millions) Number of Moons Year Length Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune 69.7 km. 109.0 km. 152.1 km. 249.1 km. 815.7 km 1,507.0 km. 3,004.0 km. 4,537.0 km. 0 0 1 2 16 18 15 8 88 days 225 days 365 days 687 days 12 years 30 years 84 years 165 years Math Connection Inner and Outer Planets Location of Planets Inner Planets Planets Close to the Sun Outer Planets Planets Far from the Sun Mercury Jupiter Venus Saturn Earth Uranus Mars Neptune The farther the planet is from the sun the longer it takes to orbit the sun Pluto Space Exploration your Take me to leader? your leader Using the link, can you find a way NASA uses measurement? The Moon, Earth’s Satellite 384,00 kilometers from the Earth Reflects light from the sun Revolves around the Earth Has been visited by astronauts Made of rock Math Connection If a space craft travels at 38,600 km. an hour, about how long would it take to reach the moon? Space Probes Space probes are sent into space to gather information and pictures about other planets and our solar system. In 1976 NASA sent 2 Viking spacecraft to photograph and gather data about Mars. Robots called Pathfinder and Sojourner landed on Mars in 1997. Today the Hubble space telescope is traveling through our solar system sending information back to Earth. Math Connection How many years passed between the Viking landing and the Pathfinder landing on Mars? How much do you weigh? Return to previous slide Would you like to be an Astronaut? Astronauts study our solar system. They do experiments in space to see if the results are different from Earth. The U.S.A. has recently destroyed a comet in space. This will help to find out what comets are made of. Connect to this movie to learn more. Movie Phases of the Moon The moon reflects light from the sun. The lit part of the moon is not always visible from earth New Moon Phase Third Quarter Phase Earth Full Moon Phase A new moon occurs every 28 days First Quarter Phase Interpreting a Graph Gravity is the force of attraction between two objects. If you weigh 80 pounds on Earth, how much will you weigh on Jupiter? Refer to the graph on Weight and Gravity. Does Jupiter have more or less gravitational pull than Mars? Which planet would you weigh about the same as Earth? Click ? To view graph The Sun is a Star The sun is made of hot gases. The sun is the closest star. The planets revolve around the sun. The Earth gets light and heat from the sun. The sun is 4.5 billion years old. Hydrogen Helium Other gases Asteroids and Meteoroids Asteroids are crater covered rocks that orbit the sun The Asteroid Belt is located between Mars and Jupiter Asteroids measure from 2.5 cm. to 1,023 km. Meteoroids are asteroids caught by Earth’s gravity A meteoroid that burns up in the atmosphere is called a meteor, or “shooting star” A meteoroid that falls to Earth without burning up is a meteorite Comets A comet is a “dirty snowball” that orbits the sun. A comet has a nucleus (center), a coma (head), and a tail that always faces away from the sun. Famous comets are Hale-Bopp, Halley, Hyakutake, and Shoemaker-Levy 9. Particles in the tail may cause a meteor shower on Earth if it passes through the tail. Math Activity How far are the planets from the sun? Work with a partner. Create a solar system showing each planet’s distance from the sun to scale. Refer to Planets of the Solar System chart. Using the outside hallway, mark the distance of each planet from the sun with a piece of tape and name of planet. The sun is at the end of the hall. Use a scale of 1 cm=1,000,000 km. Be creative to show your solar system.