*Question*
Read the following article and select the best answer. Article: A recent survey of 2000 parents in Britain showed that they are often afraid of science questions asked by their curious children only because they have no idea what the answer is. Here is a list of some simple questions that you can ask your parents to see if they know the answers. Q: Why is the sky blue? A: You probably know white sunlight is made up of seven colors. While it moves in a straight line when going through space, it starts to divide as it hits "raised area" in the atmosphere. The ones with longest wavelengths pass through easily. The blue , however , can be taken in by the gas molecules because it has a shorter wavelength , which in turn scatters it in different directions. That's why when you look up at the sky, it appears to be blue. Q:Why does the moon sometimes appear during the daytime? A: The simple answer to that is because just like any other object it is being lit by the sun. As long as it is around 45 degrees or even 90 degrees off the sun, it will receive light and be able to be seen. The only time it is not able to be seen during its 28-day orbit around the earth is when it is right between the earth and the sun. That's because its back , which is not lit by the sun, is facing us. Q: Where do birds/ honeybees go in winter? A: While the bird part is quite easy, since a lot of them get together and travel, the honeybee part is likely to puzzle your parents. It turns out that these busy insects stop being that active when the temperature drops below 50degF. Instead ,they get together in the lower central area of the hive and form a ball around their queen. This helps keep both warm enough to survive the cold winter months. Question: The sky looks blue mainly because the color blue in the sunlight _ . - has the longest wavelength among all the colors - cannot be taken in by the gas molecules - doesn't hit "raised area" in the atmosphere - cannot pass through space successfully
**Answer**
cannot pass through space successfully

*Question*
Read the following article and select the best answer. Article: Mr Green has a car. In the morning he takes his children to school in his car. Then he drives to work. Mr Green and his children do not have lunch at home, but Mrs Green does. She does not go to work. She stays at home and does some shopping and cleaning in the morning. In the afternoon she usually goes to see some of her friends, has tea and talks a lot with them. Then she cooks supper for her family. Mr Green comes back home much later than his children. They do not come back in their father's car. They take a bus home. They usually come back home before five. Question: Mr Green's children usually go to school _ . - on foot - by car - by bus - by train
**Answer**
by car

*Question*
Read the following article and select the best answer. Article: It was three o'clock. A man was walking down a high street in the north of England. He was wearing a dark suit and carrying a suitcase. His name was Terry and he and he had lived away from home for twenty years. In fact he was in prison , Terry was feeling totally depressed because everything in his hometown had changed. The park where he used to play was now a car park. The house where he was born had dis appeared and in its place, ironically , was a bank. Terry wanted to have a cup of coffee in the old small restaurant where he used to go with his friend after school, but it had become a fast food restaurant. He entered it, sat down, and asked for a cup of coffee. Then he felt sadder when he thought of what he had seen. While paying for the coffee he found an old ticket in his wallet. It was for a pair of shoes he had taken to be repaired the day before the bank robbery 20 years ago. The shoe repairer was an old man then, so Terry was sure that he must be dead. But when he turned the cor ner of the steet, he couldn't believe his eyes. The shop was still there! And it was the same shoe repairer! He looked about a hundred years old. Terry was so happy! Terry told him that he had lived in Australia for the past twenty years and that he forgot to pick up the shoes before he left England. The shoe repairer disappeared into the back of the shop. After ten minutes he came back. "Were they dark brown, Italian shoes, size 42?"he asked slowly. "Yes!nsaid Terry, excitedly. "I haven't repaired them,"the shoe repairer said slowly. "You can take them tomorrow afternoon. " Question: How long had Terry been away from home? - Ten years. - Five years. - Twenty years. - Fifteen years.
**Answer**
Twenty years.

*Question*
Read the following article and select the best answer. Article: Astronauts, people who fly into space, need special training. First they go to Houston, Texas. That is the home of the Johnson Space Centre. There they are tested to see how strong and smart they are. One of the first tests is for the heart. The people walk or run, then the space doctors see how fast their hearts are beating. Another important test is performed. In this test the person must curl his body up in a ball. When he is in that position, he is put into a round cloth bag. The doctors give him no idea how long he will have to stay in the bag. If a spaceship broke down in space, the astronauts would get into bags like this. Then they would have to wait and curl up in darkness, until help could arrive. You can see that an astronaut must not be afraid of tight space or darkness. After the tests, only the best people are chosen to start astronaut training in a training centre. The astronauts in training learn many other things. They learn how to jump out of a moving airplane. They learn to how to blow up a lifeboat and get into it while they are in the ocean. The astronauts also have to learn how to get lifted out of the ocean by helicopter . That may look fun, but it can be dangerous. After they finish training, the astronauts continue to work. They stay in good shape by running and doing exercise. They read about their special jobs. In that way they can learn new facts about space travel. Then the big day comes. The astronaut is told to go to work on a flight into space. The crew members get to know each other first. Then they can learn which job each will do. Question: The astronauts don't know how long they will stay in the bag in the test because _ . - the doctors need to know how strong they are - the astronauts need to show how smart they are - good astronauts mustn't be afraid of darkness or tight space - nobody knows when help will come if the spaceship breaks down
**Answer**
nobody knows when help will come if the spaceship breaks down