200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 A BCDE

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<ul><li>Slide 1</li></ul> <p>200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 A BCDE Slide 2 The inner planets have this in common Slide 3 What is a small rocky surface? Slide 4 These are the names of the gas giants. Slide 5 What are Jupiter, Saturn, Uranus and Neptune? Slide 6 The largest and most massive planet Slide 7 What is Jupiter? Slide 8 Neptune is very similar in size and color to this planet. Slide 9 What is Uranus? Slide 10 This inner planet once had liquid water on its surface. Slide 11 What is Mars? Slide 12 The gas giants cant let this escape into space because the planets have very strong gravitational pulls. Slide 13 What is their atmosphere? Slide 14 This is the direction Uranus rotates. Slide 15 What is on its side? Slide 16 This force tends to pull together the matter in stars. Slide 17 What is gravity? Slide 18 This is likely to happen to the universe in the future. Slide 19 What is, it will expand forever? Slide 20 A loose grouping of a few thousand stars. Slide 21 What is an open cluster? Slide 22 Saturns rings are made up mostly of these types of chunks. Slide 23 What are chunks of ice and rock? Slide 24 This may indicate that a planet may exist near a distant star. Slide 25 What is a wobble or slight forward and backward motion? Slide 26 This supports the hypothesis that Mars may once have had the conditions needed to support life. Slide 27 What is evidence that liquid water was once present? Slide 28 The four outer planets have this in common. Slide 29 What is they are larger than Earth and are made mainly of hydrogen and helium? Slide 30 This explains why many large optical telescopes are located on mountains. Slide 31 What is so they can be above the atmosphere? Slide 32 A meteoroid that enters Earths atmosphere produces this streak of light. Slide 33 What is a meteor? Slide 34 The mysterious force that may be causing the expansion of the universe to accelerate. Slide 35 What is Dark Energy? Slide 36 Astronomers predicted the existence and orbit of Neptune based on this. Slide 37 What is Neptunes gravitational effect on the orbit of Uranus? Slide 38 Meteroids usually come from these. Slide 39 What are comets or asteroids? Slide 40 One of the conditions required for life on Earth is this liquid. Slide 41 What is water? Slide 42 For this reason, Europa is considered a good place to look for life. Slide 43 What is there may be liquid water under its icy crust? Slide 44 This is the shape of the orbits of most comets. Slide 45 What are long narrow ellipses? Slide 46 The smallest terrestrial planet. Slide 47 What is Mercury? Slide 48 These are two ways Venus and Earth are much alike. Slide 49 What is their size and density? Slide 50 The asteroid belt is located here. Slide 51 Where is between Mars and Jupiter? </p>


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