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World's Lightest Material Invented (21st November, 2011)Scientists have invented the world’s lightest material. It is so light that it can rest on top of a dandelion. Researchers from the University of California, the California Institute of Technology, and HRL Laboratories created the material they call ''ultralight metallic microlattice'' (UMM). It is 100 times lighter than styrofoam the material commonly used in packaging goods and 10,000 times lighter than ultralight aerogels and carbon foams (also used for packing). Lead researcher Tobias Shandler of HRL explained why the material is so light. He said: “The trick is to fabricate a lattice of interconnected hollow tubes with a wall thickness 1,000 times thinner than a human hair.'' It is so hollow that it is 99 per cent air. The new material has been made largely of the metal nickel, but Bill Carter, a manager at HRL, said it could be made out of other materials. He said UMM is so light that: “It takes more than 10 seconds…for the lightest material we've made to fall if you drop it from shoulder height.'' The developers believe there are dozens of uses for UMM and that it will be in many everyday objects within the next decade. Computer experts say UMM will help create lighter and faster computers. Another use is impact protection - researchers say that when it is squashed to half its height, the material almost rebounds back to its original form. Other uses include sound dampening and thermal insulation.
WARM-UPS1. INVENTIONS: Walk around the class and talk to other students about inventions. Change partners often. Sit with your first partner(s) and share your findings. 2. CHAT: In pairs / groups, decide which of these topics or words from the article are most interesting and which are most boring.
Have a chat about the topics you liked. Change topics and partners frequently. 3. FUTURE INVENTIONS: What would you like to see? Complete this table with your partner(s). Change partners and share what you wrote. Change and share again.
4. NON-NATURAL: Students A strongly believe everything will be human-made in the future; Students B strongly believe most things will be natural. Change partners again and talk about your conversations. 5. BEST INVENTIONS: What are they? Rank these and share your rankings with your partner. Put the best at the top. Change partners and share your rankings again.
6. LIGHT: Spend one minute writing down all of the different words you associate with the word ‘light’. Share your words with your partner(s) and talk about them. Together, put the words into different categories. BEFORE READING / LISTENING1. TRUE / FALSE: Read the headline. Guess if a-h below are true (T) or false (F).
2. SYNONYM MATCH: Match the following synonyms from the article.
3. PHRASE MATCH: (Sometimes more than one choice is possible.)
WHILE READING / LISTENINGGAP FILL: Put the words into the gaps in the text.
LISTENING Listen and fill in the gapsScientists have invented the world’s lightest material. _________________ it can rest on top of a dandelion. Researchers from the University of California, the California Institute of Technology, and HRL Laboratories _________________ they call ''ultralight metallic microlattice'' (UMM). It is 100 times lighter than styrofoam the material _________________ packaging goods and 10,000 times lighter than ultralight aerogels and carbon foams (also _________________). Lead researcher Tobias Shandler of HRL explained why the ___________________. He said: “The trick is to _________________ of interconnected hollow tubes with a wall thickness 1,000 times thinner than a human hair.'' It is so hollow that it is 99 per cent air. The new material has _________________ of the metal nickel, but Bill Carter, a manager at HRL, said it could be made out of other materials. He said UMM is so light that: “It takes more than 10 seconds…for the lightest material we've made to fall if you drop it ___________________.'' The developers believe there ___________________ for UMM and that it will be in many ___________________ the next decade. Computer experts say UMM will help create lighter and faster computers. Another use is _________________ - researchers say that when it is squashed to half its height, the material almost rebounds back to its original form. Other uses include _________________ and thermal insulation.
AFTER READING / LISTENING1. WORD SEARCH: Look in your dictionary / computer to find collocates, other meanings, information, synonyms … for the words ‘ultra’ and ‘light’.
2. ARTICLE QUESTIONS: Look back at the article and write down some questions you would like to ask the class about the text.
3. GAP FILL: In pairs / groups, compare your answers to this exercise. Check your answers. Talk about the words from the activity. Were they new, interesting, worth learning…? 4. VOCABULARY: Circle any words you do not understand. In groups, pool unknown words and use dictionaries to find their meanings. 5. TEST EACH OTHER: Look at the words below. With your partner, try to recall how they were used in the text:
STUDENT INVENTIONS SURVEYWrite five GOOD questions about inventions in the table. Do this in pairs. Each student must write the questions on his / her own paper. When you have finished, interview other students. Write down their answers.
INVENTIONS DISCUSSIONSTUDENT A’s QUESTIONS (Do not show these to student B)
----------------------------------------------------------------------------- STUDENT B’s QUESTIONS (Do not show these to student A)
LANGUAGE MULTIPLE CHOICEScientists have invented the world’s lightest material. It is (1) ____ light that it can (2) ____ on top of a dandelion. Researchers from the University of California, the California Institute of Technology, and HRL Laboratories created the material they call ''ultralight metallic microlattice'' (UMM). It is 100 times lighter than styrofoam the material (3) ____ used in packaging goods and 10,000 times lighter than ultralight aerogels and carbon foams (also used for packing). (4) ____ researcher Tobias Shandler of HRL explained why the material is so light. He said: “The (5) ____ is to (6) ____ a lattice of interconnected hollow tubes with a wall thickness 1,000 times thinner than a human hair.'' It is so hollow that it is 99 per cent air. The new material has been made (7) ____ of the metal nickel, but Bill Carter, a manager at HRL, said it could be made out of other materials. He said UMM is so light that: “It takes more than 10 seconds…for the lightest material we've made to fall if you drop it from shoulder (8) ____.'' The developers believe there are dozens of uses for UMM and that it will be in many (9) ____ objects within the next decade. Computer experts say UMM will help create lighter and faster computers. Another use is impact (10) ____ - researchers say that when it is (11) ____ to half its height, the material almost rebounds back to its original form. Other uses include sound dampening and (12) ____ insulation. Put the correct words from the table below in the above article.
WRITINGWrite about inventions for 10 minutes. Correct your partner’s paper. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ HOMEWORK1. VOCABULARY EXTENSION: Choose several of the words from the text. Use a dictionary or Google’s search field (or another search engine) to build up more associations / collocations of each word. 2. INTERNET: Search the Internet and find out more about inventions. Share what you discover with your partner(s) in the next lesson. 3. INVENTIONS: Make a poster about inventions. Show your work to your classmates in the next lesson. Did you all have similar things? 4. UMU: Write a magazine article about the new ultralight metallic microlattice. Include imaginary interviews with the inventors and some industrialists. Read what you wrote to your classmates in the next lesson. Write down any new words and expressions you hear from your partner(s). 5. LETTER: Write a letter to the inventors. Ask them three questions about ultralight metallic microlattice. Give them three ideas on how it could be used. Read your letter to your partner(s) in your next lesson. Your partner(s) will answer your questions.
ANSWERSTRUE / FALSE:
SYNONYM MATCH:
PHRASE MATCH:
GAP FILL: World’s lightest material inventedScientists have invented the world’s lightest material. It is (1) so light that it can rest on (2) top of a dandelion. Researchers from the University of California, the California Institute of Technology, and HRL Laboratories created the material they (3) call ''ultralight metallic microlattice'' (UMM). It is 100 times lighter than styrofoam the material commonly (4) used in packaging goods and 10,000 times lighter than ultralight aerogels and carbon foams (also used for packing). Lead researcher Tobias Shandler of HRL explained (5) why the material is so light. He said: “The (6) trick is to fabricate a lattice of interconnected hollow tubes with a wall thickness 1,000 times (7) thinner than a human hair.'' It is so hollow that it is 99 per cent (8) air. The new material has been made (9) largely of the metal nickel, but Bill Carter, a manager at HRL, said it could be made out of (10) other materials. He said UMM is so light that: “It takes more than 10 seconds…for the lightest material we've made to fall if you (11) drop it from shoulder height.'' The developers believe there are (12) dozens of uses for UMM and that it will be in many everyday objects (13) within the next decade. Computer experts say UMM will help create lighter and faster computers. Another use is (14) impact protection - researchers say that when it is (15) squashed to half its height, the material almost rebounds back to its original (16) form. Other uses include sound dampening and thermal insulation. LANGUAGE WORK
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