QUES: The explosion, while killing one of the Cossacks and seriously wounding the driver and people on the sidewalk, had only damaged the bulletproof carriage, a gift from Napoleon III of France. The emperor emerged shaken but unhurt. Rysakov was captured almost immediately. Police Chief Dvorzhitsky heard Rysakov shout out to someone else in the gathering crowd. The surrounding guards and the Cossacks urged the emperor to leave the area at once rather than being shown the site of the explosion. Nevertheless, a second young member of the Narodnaya Volya, Ignacy Hryniewiecki, standing by the canal fence, raised both arms and threw something at the emperor's feet. He was alleged to have shouted, "It is too early to thank God". Dvorzhitsky was later to write:
Do you have any questions?
MY QUESTION: How many times was the emperor attacked?

QUES: Tim had always a red bike. His birthday party was coming up and he hoped that his parents would finally get him the bike. When his friends came over for the party, Tim was very worried that he wouldn't get the bike. He looked at all the presents and none of them seemed big enough to have a bike in them. Tim was sad. When it was time to open the presents he opened them one at a time. The first present was not a bike. The second present was not a bike. The third present was the biggest one. Tim knew if the bike was going to be in any of the presents it was going to be in this box. Tim opened it and there was no bike inside. Just as Tim tried not to look too upset, his Dad brought in the biggest present of them all. His Dad had been hiding the present all along. Tim opened it and his new bike was inside the box. Tim put the bike together with his Dad's help.
Do you have any questions?
MY QUESTION: What emotions was Tim having before opening his presents?

QUES: Jake was walking to the park to play baseball with his friends. He loved being outside on sunny days, and now that school was over for the year, he was playing baseball every day. The more he played, the better he got. Only Frank was better than he was. He liked playing third base, but he often played in the field. He was carrying his favorite mitt that his Grandfather had bought him. His Grandfather had taught him to catch. He loved spending time with him when he was younger, but he had moved last year. Now he only saw his Grandfather in the summer. Jake was really excited to show him his skills when he came to their next game. He could throw really fast now. He was sure his Grandfather would want to sit in the front to watch him. He knew he would jump up and down. Jake happily ran the rest of the way to the park thinking about how much fun he was going to have playing baseball this year.
Do you have any questions?
MY QUESTION: Why does Jake only see his grandfather in the summer now?

QUES: You know that friction also causes heat. Think about when you rub your hands together. It is friction that makes them warm. But why does this happen? Friction causes the molecules on rubbing surfaces to move faster. Faster moving particles have more heat energy. Heat from friction can be useful. Can you think of other places where you might find friction? Friction also lets you light a match. Heat from friction can also cause problems. It can cause a car to overheat. To reduce friction, oil is added to the engine. Oil coats the surfaces of moving parts. This coating of oil makes them slippery. When things are slippery there is less friction. Have you ever seen a sign that says, slippery when wet? This too has to do with friction. Water, like oil, can reduce friction. The wet surface may allow your shoes to slide more easily.
Do you have any questions?
MY QUESTION:
What can be done to prevent friction problems in engines?