COMETS AND ASTEROIDS.pptxdfghjfghjklghjk

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1. Comets, Asteroids and Meteoroids

2. 1. Identify the different characteristics of comets and asteroids. 2. Explain how comets differs from asteroids. 3. Compare and contrast comets and asteroids using a Venn diagram. O bjectives:

3. Other than the sun, planets, and moon, what other objects are found in the Solar System?

4. Comets and Asteroids

5. Are comets and asteroids the same? Why do you say so? How do they differ from one another?

6. Are comets and asteroids the same? Why do you say so? How do they differ from one another?

7. Comets

8. Comets are composed of dust and rock mixed with frozen water, methane, and ammonia Comets are considered to be like a large, dirty snowball.

9. Comets travel around the sun in elliptical orbits. When a comet nears the sun, some of it melts and forms a long tail (gases in the comet are vaporized by the sun). When a comet moves farther away from the sun, the tail disappears.

10. Asteroids

11. ASTEROID A piece of rock similar to the material formed into planets. An Asteroid is smaller than a planet but larger than a meteoroid.

12. Most asteroids are located in an area between the orbits of Mars and Jupiter called the Asteroid Belt. Why are they located there? The gravity of Jupiter might have kept a planet from forming in the area.

13. Activity Time! Comets Asteroids Compare and contrast comet and asteroid.

14. Activity Time!

15. What happens when a comet or an asteroid hits Earth? Objectives: After performing this activity, you should be able to: 1. describe how impact craters are formed when a comet or asteroid hits Earth based on a simulation; and 2. present observations on simulating a comet or asteroid impact using drawings.

16. Materials Needed: 1 rectangular container (aluminum tray or plastic) 1 pebble (1-4 cm in diameter) colored flour/colored starch pencil

17. Procedure: 1. Fill the rectangular tray with colored flour about 3-4 centimeters deep. 2. Place the tray on top of a table (or armrest of a chair). 3. Throw a pebble to hit the flour in the tray. Do this about four times, hitting different parts of the flour in the tray.

18. 4. In the space below, draw the shape of the “craters” made by the pebble on the colored flour as:

19. 5. Compare the shape of the pebble’s “crater” with the shape of the impact crater photo shown below. Q1. What do you notice about the shape of your pebble’s crater and the shape of the impact crater shown in the photo? Q2. What do you think happened to the plants and animals living in the area where the comet or asteroid crashed?

20. Comets and asteroids are referred to by astronomers as Near-Earth Objects (NEO). Comets are icy bodies or objects while asteroids are rocky fragments . They are remnants from the formation of our solar system 4.6 billion years ago. Comets and asteroids both orbit the Sun.

21. Meteoroid, meteor, and meteorite: How are they related?

22. Have you ever seen a shooting star in the night sky?

23. It appears as an object with a tail just like a comet. It travels quickly and appears to fall on the ground. A shooting star is another name for a meteor. But the truth is: a meteor is not a star at all. A meteor is a light phenomenon or a streak of light that occurs when a meteoroid burns up as it enters Earth’s atmosphere. M eteor

24. M eteoroid A meteoroid is a broken up rock and dust from either a comet, asteroid, the Moon, or from Mars.

25. Show where a meteoroid, meteor, and meteorite are most likely to be found in the diagram below. Use the following symbols for each: meteor; meteoroid; and meteorite.

26. MAYBE YOU NEED TO DIVIDE THE CONTENT It’s the closest planet to the Sun and the smallest one in the Solar System It’s the second planet from the Sun and its atmosphere is extremely poisonous MERCURY VENUS

27. YOU COULD USE THREE COLUMNS, WHY NOT? Mercury is the closest planet to the Sun MERCURY Neptune is the farthest planet from the Sun NEPTUNE Saturn is the ringed one and a gas giant SATURN

28. A PICTURE ALWAYS REINFORCES THE CONCEPT Images reveal large amounts of data, so remember: use an image instead of long texts

29. AWESOME WORDS

30. YOU COULD USE FOUR COLUMNS Mercury is the closest planet to the Sun MERCURY Venus is the second planet from the Sun VENUS Despite being red, Mars is a cold place MARS Saturn is the ringed one and a gas giant SATURN

31. THIS IS A GRAPH To modify this graph, click on it, follow the link, change the data and paste the new graph here MERCURY VENUS SATURN

32. SOMETIMES, REVIEWING CONCEPTS IS A GOOD IDEA Venus is the second planet from the Sun VENUS Despite being red, Mars is a cold place MARS Saturn is the ringed one and a gas giant SATURN Neptune is the farthest planet from the Sun NEPTUNE Mercury is the closest planet to the Sun MERCURY It’s the biggest planet in the Solar System JUPITER

33. NAME OF THE SECTION 02 You could enter a subtitle here if you need it

34. INFOGRAPHICS MAKE YOUR IDEA UNDERSTANDABLE… MERCURY VENUS MARS SATURN It’s the closest planet to the Sun It’s the ringed one and a gas giant Despite being red, it’s a cold place It has very high temperatures

35. MASS (EARTHS) DIAMETER (EARTHS) SURFACE GRAVITY (EARTHS) MERCURY 0.06 0.38 0.38 MARS 0.11 0.53 0.38 JUPITER 95.2 9.4 1.16 …AND THE SAME GOES FOR TABLES

36. THIS IS A MAP MERCURY VENUS MARS JUPITER It’s the closest planet to the Sun It’s the ringed one and a gas giant It has very high temperatures Despite being red, it’s a cold place

37. A TIMELINE ALWAYS WORKS WELL 2017 2019 2018 2016 It’s the closest planet to the Sun It’s the ringed one and a gas giant Despite being red, it’s a cold place It has very high temperatures

38. HOW ABOUT THE PERCENTAGES? 20% Saturn is the ringed one and a gas giant 50% It’s the biggest planet in the Solar System 80% Venus has a beautiful name, but is very hot 100% Mercury is the closest planet to the Sun

39. 4,498,300,000 Big numbers catch your audience’s attention

40. 333,000.00 earths is the Sun’s mass 24h 37m 23s is Jupiter’s rotation period 386,000 km is the distance between Earth and the Moon

41. THIS IS A INFOGRAPHIC MERCURY It’s the closest planet to the Sun SATURN It’s a gas giant and has rings MARS It’s red and is a cold place NEPTUNE Neptune is the farthest planet JUPITER It’s the biggest planet in our Solar System

42. A TIMELINE ALWAYS WORKS WELL NEPTUNE SATURN JUPITER EARTH MARS VENUS MERCURY 1 2 3 5 4 6 7 Mercury is the closest planet to the Sun Neptune is the farthest planet from the Sun

43. THIS IS A GRAPH To modify this graph, click on it, follow the link, change the data and paste the new graph here 38,5% 20,5% 30,8% 10,3% MERCURY VENUS MARS JUPITER It’s the closest planet to the Sun It’s the biggest planet of them all It has very high temperatures Despite being red, it’s a cold place

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45. OUR TEAM Mars is a cold place. It’s full of iron oxide dust, which gives the planet its reddish cast

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