Problem: Three kids have been learning chemistry for only a few months. But they have already begun to challenge a world famous scientist! Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator . They want it to take the place of litmus paper. "We've learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other." British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world. But when the kids did some experiments in class last winter, they saw that the litmus paper didn't turn very blue with base matter. It's hard to get a clear result. Will there be a better indicator than litmus paper? The three kids decided to try and find out! How? They went to collect over 40 plants in parks, gardens and markets. Then they ground leaves, flowers and stems to get the pigments from them. The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best colour change. They decided it was the litmus paper! "It's our first scientific journey, Huang said, "But it makes me want to try harder."
1. What subject do the kids study?
2. How many kids are there?
3. What are their names?
4. Are they in school?
5. Which one do they attend?
6. Where is that at?
7. What chemist are they challenging?
8. What did he discover?
9. How long ago was that?
10. What might replace the litmus paper?
Answer: 1. chemistry
2. Three
3. Li Weichi, Huang Runling, and Xiao Yan
4. Yes
5. Zhongshan Huaqiao Middle School
6. Guangdong
7. Robert Boyle
8. the use of litmus paper
9. over 300 years ago
10. mixed pigments with acid and base

Problem: (CNN) -- The stars of tennis took time out from their French Open preparations Sunday to honor the man who helped them become some of the highest-paid athletes in the world.

Brad Drewett passed away Friday, aged 54, succumbing to the motor neurone disease that had forced him to step down as head of the men's ATP World Tour.

Novak Djokovic, Roger Federer, Rafael Nadal, Andy Murray and Serena Williams led a minute's silence ahead of the start of the Madrid Masters, while similar tributes were held at tournaments in Portugal and Germany.

"Brad wasn't just the president of the ATP but was a player himself, a board member," Federer said on the ATP website.

"He's given so much time and effort to the ATP, and I think this is really what we will try to honor in a small way today."

Drewett reached a career-high 34 in the world rankings, but his efforts in administration had far bigger impact on the game, from his time on the players' council to running the ATP's Middle East, Asia and Pacific operations before becoming president in early 2012.

The Australian took the end-of-season championship to China as part of tennis' global spread in the early 2000s, and then brought it to London where it has become a lucrative moneyspinner and showpiece for the ATP.

He has also been credited with getting the players a larger share of prize money from the four grand slam tournaments since he took over the top role a year and half ago.
1. Who is the star if tennis in this article?
2. What did they do?
3. Who did pass away?
4. When did he pass away?
5. How old was Brad Drewett?
6. What disease did he have?
7. What did Federer said about Brad?
8. How old was Drewett when he reached a career-high?
9. Did his efforts in administration had a big impact?
10. When did he become a president?
11. Where did he took the end-of-seasons championship?
12. When?
13. Did he share a large share of prize money from the four grand slam tournaments?
14. When did he take over the top role?
Answer: 1. Novak Djokovic, Roger Federer, Rafael Nadal, Andy Murray and Serena Williams
2. led a minute's silence
3. Brad Drewett
4. Friday
5. 54
6. motor neurone
7. "Brad wasn't just the president of the ATP but was a player himself, a board member," and "He's given so much time and effort to the ATP, and I think this is really what we will try to honor in a small way today."
8. unknown
9. yes
10. 2012
11. China
12. early 2000s
13. Yes
14. a year and half ago

Problem: LONDON, England (CNN) -- The death of a teenage girl in a Welsh village in an apparent copycat suicide has raised fears she may have been part of an Internet death cult already blamed for the deaths of six young men.

Natasha Randall, 17, who was found hanged in her bedroom in Blaengarw, near Bridgend, south Wales, on Thursday, was the seventh person believed to have killed themselves in the local area in the past 12 months, the UK's Press Association reported.

Police are examining Randall's computer after the teenager posted messages on a social networking site, Bebo, prior to her death dedicated to 20-year-old Liam Clarke, who was found hanged in a Bridgend park last month.

The message read: "RIP Clarky boy!! gonna miss ya! always remember the gd times! love ya x. Me too!"

Messages have also been posted on Randall's page since her death, PA said. "RIP tash - can't believe you done it!" one said. Another read: "Heyaa Babe. Just Poppin In To Say I Let My Balloon Off With A Message On It, Hope You Got It Ok And It Made You Laugh Up There."

Five more men aged between 17 and 27 have been found hanged in the area since January 2007.

Speaking to the Daily Mail newspaper, Liam Clarke's father, Kevin Clarke, said the seven who had killed themselves appeared to have known each other.

"We don't know if it is some weird cult or copycat suicides or if they have had some bizarre pact to kill themselves," Clarke said.
1. How old was Natasha Randall?
2. Did she die?
3. Did she die?
4. From what?
5. Where?
6. In what town?
7. When did this happen?
8. How many people have done this in the past year?
9. According to who?
10. What is to blame?
11. Which social network site was this on?
12. Have there been messages posted on Randall's page?
13. What are the ages of the people who have died?
14. When did this start?
15. Who is Liam Clarke's father?
16. Who did he speak to?
17. Did the people who did this know each other?
18. Which newspaper did he talk to?
Answer:
1. 17
2. suicide
3. yes
4. hung herself
5. her bedroom
6. Blaengarw
7. Thursday
8. 7th
9. UK's Press Association
10. an Internet death cult
11. Bebo
12. yes
13. 17 to 27
14. January 2007.
15. Kevin Clarke
16. the newspaper,
17. yes
18. Daily Mail