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Who discovered radioactivity?
Marie Curie’s discovery of two naturally radioactive elements, polonium and radium, made headline news. However, her real discovery was that atoms ___NOT/BE___ small solid balls and that there must be even ___SMALL___ particles inside them. This discovery opened the door to all atomic and subatomic research and even to the splitting of the atom.
Curie carried out her research with radioactive elements before the dangers of radioactivity ___UNDERSTAND___. She suffered from radiation sickness for most of her adult life. Indeed, for many years after her death, her notebooks were still highly radioactive.
Do Canadians celebrate Thanksgiving?
Canadians celebrate Thanksgiving Day, but on a different day. Their Thanksgiving is on the ___TWO___ Monday in October.
It happens so because harvest time comes ___EARLY___ in Canada. Canadians enjoy turkey, mashed potatoes, and pumpkin pie on Thanksgiving, but they ___NOT/ASSOCIATE___ their holiday with Pilgrims and the landing of the Mayflower. Instead, they refer back to the landing of Martin Frobisher from England at Newfoundland in 1578, 43 years before the Pilgrims landed in Massachusetts.
Who invented spaghetti, the Italians or the Chinese?
When you think of agriculture in China, you probably think of rice. However, China is the largest wheat producer in Asia, and the ___THREE___ largest producer overall, ___ACCOUNT___ for about 10 percent of the world’s wheat crop.
What do the Chinese make from their wheat? Among other things, they make spaghetti! The Chinese ___MAKE___ noodles from wheat and other grains for longer than the Italians.