Survey
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* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Solar System Review-KEY 1. Review the Vocabulary Cards for the unit. 2. Write the planets in order beginning with the planet closest to the sun. Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune 3. When you turn a model of the Earth around on its axis, what does this motion represent? The model represents why the Earth has day and night. It appears to make the sun rise and set. 4. How do scientists classify stars? Explain. Scientists classify stars by size, color, and brightness. a. Size: solar radi-->supergiants--> dwarfs b. Color: blue (hot) --> yellow (middle) --> red (cool) c. Brightness: how bright the star is also takes into account how far it is from Earth 5. What is a constellation? Give and example. Constellations are groups of stars that form an imaginary picture in the sky. Examples include Taurus, Ursa Major, O’Ryan, The Big Dipper, etc. 6. Which object in the night sky moves: galaxies, constellations, stars, or planets? Explain your answer. Planets move in the night sky because they revolve around the star/a star. Stars only APPEAR to move because Earth revolves around the Sun. Planets are in a different position each night. 7. Explain the difference between a planet and a star. Stars are huge balls of superheated gases. Planets are large objects that orbit a star. In the night sky, planets shine steadily while stars shine with a pulse (they twinkle—twinkle twinkle BIG BIG star!) 8. What is our sun made up of? The sun is a huge ball of gases- hydrogen and helium. 9. What are three types of technology that scientists use to explore space? Explain how each one is used. a. Telescopes (ex. Hubble Space Telescope) which are used to see faraway objects in the night sky. b. Manned “Crewed” Missions on space crafts which are used to collect information and samples from planets c. Satellite are sent into orbit to collect data and pictures 10. Explain the difference between the Earth revolving around the sun and the Earth’s rotation. Rotation of the Earth is when the Earth spins around on its axis (the imaginary line down the middle of the Earth), this takes 24 hours to complete. A revolution is when the planet (Earth) orbits (in a path) around the sun. One Earth revolution takes 365 days, or one whole year. 11. Why do the positions of the stars seem to change as seasons change? As Earth orbits the sun, we see different parts of space at different times of the year. The Earth moves when it rotates and revolves, causing us to see different parts of space as the year progresses. 12. Label each stage of the phases of the Moon. New Moon-->Waxing Crescent-->First Quarter-->Waxing Gibbous (14 days)--> Full Moon--> Wanning Gibbous--> Third/Last Quarter--> Wanning Crescent (28 days) **Waxing- Shining** Wanning-Fading**