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Well send you updates on digital features and tips here throughout the year. Check out Scholastic Math At Home for our favorite stories and tools to kick off your year. Check back soon for more announcements and tutorials. Well send you updates on digital features and tips here throughout the year. Check out Scholastic Math At Home for our favorite stories and tools to kick off your year. Check back soon for more announcements and tutorials. Positive and negative integers are used to describe quantities with opposite directions or values. When you add or subtract from an integer, you increase or decrease its value. In 1925, airplane engines were cooled with water. Water freezes at a temperature of 32º Fahrenheit. Average winter low temperatures in Alaska are 50º colder than that. What is Average winter low temperature in Alaska? In the 1920s, sled dog teams delivered mail to remote cities like Nome in the winter. The lowest temperature most sled dogs can run in is -71ºF. Thats 21º warmer than the coldest it gets in Alaska in winter. Whats the winter low temperature in Alaska? Sled dogs have thick fur to keep them warm. But they can overheat while running if its too warm outside. The maximum temperature the dogs can run in is 71º higher than their minimum of -71ºF. What is the maximum temperature that they can run in? Just before midnight, the first musher, William Wild Bill Shannon, left Nenana. It was -50ºF. When he took his first break, it was 12º colder. What was the temperature? While in transit, the antitoxin had to stay between 36ºF and 46ºF. The dogsled teams stopped along the route often to warm the antitoxin by a fire to prevent it from freezing. A range of how many degrees Fahrenheit was ideal for the antitoxin? During his leg of the run, Shannon developed hypothermia, a dangerous condition caused by extreme cold. Normal body temperature is 98.5ºF. During hypothermia, it falls by at least 3.5º. If his temperature dropped by that amount, what was Shannons body temperature with hypothermia? When musher Edgar Kallands arrived at Manley Hot Springs, the owner had to pour hot water over his mittens to melt them free of his sleds handlebar. At the start of his leg of the relay, the temperature was -62ºF. When his leg was over, it was 6º warmer. What was the temperature at the end of his run? Musher Leonhard Seppala lived in Nome but traveled over the frozen sea ice of Norton Sound to Shaktoolik, where he picked up the antitoxin for his leg of the relay. When Seppala left Nome, it was -20ºF. In Shaktoolik, the windchill, or temperature with the wind factored in, made it feel 105º colder. What was the windchill temperature in Shaktoolik? During his leg, musher Charlie Olsons sled overturned. He got frostbite trying to get his sled and the vials back together. Frostbite occurs when skin is exposed to temperatures -15ºF or lower for too long. At that point in the race, the windchill temperature was 55º colder than the warmest temperature at which frostbite occurs. What was the windchill temperature? The highest temperature along the route was -20ºF in Nome. The lowest was 65º colder. What was the coldest temperature on the route? The antitoxin was heated to 90ºF before it was given to patients. It was 58º colder when it arrived in Nome. What temperature was that? Write and solve your own question with positive and negative integers using any of the numbers in the previous panels. Total Distance Covered during the relay Total Number of Sled Dogs Longest Individual Leg, run by Leonhard Seppala and lead dog Togo Units of Antitoxin delivered; A second relay brought more to end the epidemic Play the game Absolute Frenzy (above) to practice finding distances between positive and negative integers.Many people in the U.S. now receive a vaccine that helps prevent them from getting sick from diphtheria. Learn more about the history of vaccines from this timeline. Write a short paragraph describing what information you found new or interesting.Rewrite the story of The Serum Run from the point of view of one of the sled dogs! You can use this Create a Comic Strip template to help you organize your ideas and write your own retelling.. Answer KeyAnswers to all 2nd-Grade activity pages in an easy printable format Printable BonusA memory game to reinforce reading analog and digital clocks, plus time in words. Print two sets of cards to use separately or combined. Well send you updates on digital features and tips here throughout the year. Check out Scholastic Math At Home for our favorite stories and tools to kick off your year. Check back soon for more announcements and tutorials.
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