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12. clarify the adaptation among a solstice and an equinox. provide the dates of those occasions on the earth. thirteen. clarify how scientists understand that the Moon used to be geologically lively. Use the representation less than to respond to questions 14 and 15. Umbra sunlight Moon Earth Penumbra 14. What kind of eclipse is proven above? 15. Describe what anyone status within the Moon’s umbra could see if she or he checked out the sky donning protecting eyewear. sixteen. the lean of Earth on its axis explanations seasons. provide the explanation why this tilt explanations summer season to be hotter than iciness. 17. whilst the Apollo missions resulted in 1972, 12 astronauts had visited the Moon and taken again samples of moon soil and rock. clarify why we proceed to ship orbiting spacecraft to check the Moon. 18. outline the time period impression basin, and identify the most important one identified within the sunlight procedure. 19. As a boat comes into view over the horizon, the pinnacle seems to be sooner than the remainder of the send. How does this exhibit that Earth is round? 20. If Earth have been flat, how might an drawing close send look in a different way? 21. clarify why eclipses of the sunlight take place merely sometimes although the Moon’s rotation reasons it to move among Earth and the sunlight each month. 22. fresh facts from the spacecraft Lunar Prospector point out the presence of enormous amounts of water in shadowed parts of lunar influence basins. Describe the speculation that scientists have built to provide an explanation for how this water reached the moon and the way it'd be preserved. 23. evaluate the influence idea of lunar formation with one of many older theories proposed prior to the Apollo undertaking. 24. Describe how scientists learn the internal of the Moon and what they've got realized to date. 25. clarify why Earth’s magnetic north poles has to be mapped and why those maps has to be stored up to date. bookj. msscience. com/standardized_test STANDARDIZED attempt perform J ◆ sixty seven 523-S1-MSS05_LBJ 08/16/2004 1:51 PM web page sixty eight The sun approach sections 1 The sunlight process Lab Planetary Orbits 2 three four the internal Planets The Outer Planets different gadgets within the sunlight method Lab sun approach Distance version digital Lab What are the size of the sunlight approach? sixty eight ◆ J Roger Ressmeyer/CORBIS How is area explored? You’ve obvious the solar and the Moon. you furthermore mght may need saw a few of the planets. yet to get a truly stable examine the sun method from Earth, telescopes are wanted. The optical telescope on the Keck Observatory in Hawaii permits scientists a close-up view. technology magazine if you happen to may possibly command the Keck telescope, what could you view? Describe what you will see. 523-S1-MSS05_LBJ 08/16/2004 1:51 PM web page sixty nine Start-Up actions version Crater Formation a few gadgets within the sun method have many craters. The Moon is roofed with them. The planet Mercury additionally has a cratered panorama. Even Earth has a few craters. All of those craters shaped whilst rocks from house hit the outside of the planet or moon. during this lab, you’ll discover crater formation. 1. position white flour right into a steel cake pan to a intensity of three cm. 2. disguise the flour with 1 cm of coloured powdered drink combine or various shades of gelatin powder.