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Our sun is actually an orange, dwarf star. Although it is not nearly the ....hottest ....(hot) star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We ......commonly ..... (common) think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times ......greater ....(great) than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
The sun's corona is almost as hot as interior. Solar prominences-tongues of hot gas-leap outward a half million miles from the sun's surface at speeds reaching 250,000 miles an hour. ........Fortunately... (fortune) , these prominences do not travel the full ninety three million miles to earth, nor are their terrific temperatures transmitted through space. Some of the energy from these ..disturbances ....... (urban) does not reach our atmosphere, however, and is believed to cause changes in weather.Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
The sun's corona is almost as hot as interior. Solar prominences-tongues of hot gas-leap outward a half million miles from the sun's surface at speeds reaching 250,000 miles an hour. Fortunately, these prominences do not travel the full ninety three million miles to earth, nor are their terrific temperatures transmitted through space. Some of the energy from these disurbances does not reach our atmosphere, however, and is believed to cause changes in weather.Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth
1. The World, the Blue Planet, or the Blue Marble.
2. Because it's the only planet that has water in liquid form on the surface.
3. It is the third closest planet to the Sun in the Solar System.
4. Its biosphere and minerals.
5. Earth has water in liquid form on the surface while Mars doesn't.
1. How far is it from Mars to the Sun?
Mars is more than 142 million miles from the sun
2. What is the average temperature on Mars?
The average temperature on Mars is minus 80 degrees Fahrenheit
3. What covers almost all of Mars?
Canyons, volcanoes and craters covers almost all of Mars?
4. What can cover the whole planet?
Dust storm can cover the whole planet!
5. What is your weight on Mars if you weigh 100 pounds on Earth?
37 pounds
Rewrite each of the following sentences so that it means exactly the same as the given one. Using the given words in brackets. Do not change the word.
1: I'm not you. But I think you should recycle these plastic carrier bags. (if)
........If I were you, I would recycle these plastic carrier bags.......
2: Emma came first because she worker hard. ( result)
..............Emma came first as a result of her hard work.............
3: Eating too much sugar can result in health problems. ( lead )
...............Eating too much sugar can lead to health problems.......
4: All frights had to be cancelled as a result of the pilots sudden strike. (so)
..........The pilots suddenly went on strike, so all flights had to be cancelled. ..........
5: If I could swim. I would go scuba diving with Terry. (beacause)
....I don't go scuba diving with Terry because I can't swim........
Give the correct form of the words to complete the following sentences.
John watched a ( 1. document)documentary on TV last night. It was all about the problems ( 2. threaten)threatening our environment. He was shocked to find out how little he knew about (3.globe)global warning or acid rain. He had heard the term before but he knew ( 4. practical)practically nothing about the damage they cause to our planet. He feels he should do something to be (5.help)helpful. He would like to join an ( 6.organize)organization , but he doesn't know which one to join. He has seen so many (7.advertise)advertisements in newspapers that he can't make up his mind. I lowever., he believes that it is ( 8. acceptable)unacceptable not to be environmentally aware and he is ( 9.hope)hopeful that one day everyone will be part of a world movement to save the earth. He was sure that in this time of ( 10. technology)technological advances, we find may to solve the world's problems.
1............. 2................. 3................. 4.................. 5................. 6................7.................. 8................. 9................. 10.................
Pluto is a dwarf planet. A dwarf planet travels around, or orbits, the sun just like other (1) ____planets______. But it is much smaller. Clyde Tombaugh discovered Pluto in 1930. He was an astronomer (2) _______from______ the United States. An astronomer is a scientist who studies stars and other objects in (3) ____space_________. Venetia Burney named Pluto that same year. She was an 11-year-old girl from England.
Pluto is not (4) _____very________ big. It is only half as wide as the United States. Pluto is smaller than Earth's moon. This dwarf planet (5)______takes_______ 248 Earth years to go around the sun. If you lived on Pluto, you (6) ________would_____have to wait 248 Earth years to celebrate your first birthday. One day on Pluto is about 6 1/2 days (7) ________on_____Earth. Pluto is about 40 times farther from the sun than Earth is. Pluto is in am area of space (8) _______called______ the Kuiper (KY-per) Belt. Thousands of small, icy objects like Pluto but smaller (9)______are_______in the Kuiper Belt.
This dwarf planet has five moons. Its largest moon is (10) ______named_______ Charon (KAIR-ən). Charon is about half the size of Pluto. Pluto's four other moons are named Kerberos, Styx, Nix and Hydra.