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The Universe

The Universe. CELESTIAL BODIES. Planets Satellites Asteroids Comets Galaxies Clusters of galaxies Stars. Star. They are small lights. They twinkle. They form groups (Constellation). Example of Stars. Ursa Major (The Big Dipper). Characteristics of Stars. Colour

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The Universe

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  1. The Universe

  2. CELESTIAL BODIES • Planets • Satellites • Asteroids • Comets • Galaxies • Clusters of galaxies • Stars

  3. Star • They are small lights. • They twinkle. • They form groups (Constellation).

  4. Example of Stars • Ursa Major (The Big Dipper)

  5. Characteristics of Stars • Colour • Bluish, redish, orange • Sun is yellow. • Size • Sun is a medium star. • Other stars are smaller, other stars are bigger than the sun. • Brightness • Light

  6. Binary Star System • Two stars turn around a common centre point

  7. Cluster Star Systems • Groups of many stars

  8. Galaxies • Made up of groups of stars, gases, and dust.

  9. The Milky Way

  10. Shapes of Galaxies Elliptic Irregular Spiral

  11. The Solar System

  12. Mercury • It is the planet closest to the sun. • It has a dry, hot, and airless climate. • One day on Mercury equals 176 Earth days.

  13. Venus • It is Earth’s twin. • It is brighter than any other planets or stars. • The ground has mountains, canyons, and valleys.

  14. Earth • It is the home of all known life in the universe. • Its surface is mostly water. • It is the 5th largest planet.

  15. Mars • It s called the “red planet” because it is a red-orange colour • Its average temperature is -60°C. • Is there life on Mars?

  16. Jupiter • It is the largest planet. • The surface is gas and liquid. There are no solids on its surface.

  17. Saturn • It is the 2nd largest planet. • Its distinctive feature is its rings. • It has 30 satellites.

  18. Uranus • It is composed of rock and ice. • It has 11 known rings. • It has 15 satellites

  19. Neptune • It’is a bluish colour. • It has the same composition as Uranus. • Rock and ice

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