Nature works Polylactic acid A dozen years ago, scientists at Cargill got the idea of converting lactic acid made from corn into plastic while examining possible new uses for materials produced from corn wet milling processes. In the past, several efforts had been made to develop plastics from lactic acid, but with limited success. Achieving this …
Children’s comprehension A In 1874, long before the advent of television, the English Parliament passed a law to protect children ‘from their own lack of experience and from the wiles of pushing tradesmen and moneylenders’ (James, 1965). The act is one of the earliest governmental policies to address children’s vulnerability to commercial exploitation and was produced …
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Sponging dolphins (A) In 1984, researchers spotted dolphins doing something unusual in Shark Bay, Western Australia. When the animals got hungry, they ripped a marine basket sponge from the sea floor and fitted it over their beaks like a person would fit a glove over a hand. The scientists suspected that as the dolphins foraged for …
The Can – A Brief History Lesson A. The story of the can begins in 1795 when Nicholas Appert, a Parisian, had an idea: why not pack food in bottles like wine? Fifteen years later, after researching and testing his idea, he published his theory: if food is sufficiently heated and sealed in an airtight …
Olive Oil Production Olive oil has been one of the staples of the Mediterranean diet for thousands of years and its popularity is growing rapidly in other parts of the world. It is one of the most versatile oils for cooking and it enhances the taste of many foods. Olive oil is the only type …
The origin of ancient writing Questions 1-4 Choose the correct letter A, B, c or D 1. The researchers at the symposium regarded the story of the King of Uruk as ridiculous because A writing probably developed independently of speech. B clay tablets had not been invented at that time. C the distant ruler would have spoken another …
Becoming an Expert Questions 1-5 Complete the flow-chart below Choose NO MORE THAN THREE WORDS from the passage for each answer. Write your answers in boxes 1-5 on your answer sheet. Novice: needs to study 1 under the guidance of a 2 3 : starts to identify 4 for cases within or between study more 5 ways of doing things create new knowledge Expert: performs task …
Revolutions in Mapping Questions 1-5 Choose the correct letter, A, B, c or D. Write the correct letter in boxes 1-5 on your answer sheet. 1. According to the first paragraph, mapmakers in the 21st century A combine techniques to chart unknown territory.B still rely on being able to see what they map.C are now able to visit the darkest jungle.D need input …
Sir Francis Ronalds and Telegraph Question 1-5 Matching the each correct year to the historical event in the passage, and write the correct answer into box of 1-5 in the answer sheet A 1753 B 1806 c 1816 D 1823 E 1825 F 1837 G 1843 1 ABCDEFG When did Francis Ronalds achieve a satisfactory result in the electricity experiment conducted first time? 2 ABCDEFG When was the first proposal of an …
