September 21, 2019
 Students practice Claim, Evidence, and Reasoning (CER) while examining the relationship between falling height and cat injuries. The graphs show that cats who fall 2-7 stories often suffer more injuries than cats who fall from greater distances. Not much information is given about how the data was collected, though the original source is included, I find this a good time to talk to students about ethics in research. Some students will question how the data was gathered, and suspect that scientists wouldn’t throw cats off buildings. The data was actually gathered from veterinary reports of cats who were treated after falls. Students first analyze data from a table, then read an article from Nature titled “Why Cats Have Nine Lives” which goes into greater detail about why cats can survive falls that would kill humans. Students use the articles and accompanying graphs to identify the CLAIM that is being made by the author and the EVIDENCE given. Some of the vocabulary in the article may be difficult for some biology students, particularly words related to veterinary and anatomical concepts. For example, the graph shows a line to denote the number of “split palates” recorded for falls. Students may not know that a split palate refers to a mouth/chin injury. The handout linked below has an abridged version of the article to keep the lesson time shorter, though the original article can be downloaded. I also show this video to students after they’ve analyzed the data because it helps them to visualize how cats manage to survive these falls and understand how terminal velocity works. Download PDF Google Doc
QUESTION: How and when did someone come up with the notion that a cat has nine lives? ANSWER: Historians say the Egyptians revered the number nine because they associated it with their sun god, Atum-Ra. According to one version, Ra gave birth to eight other gods. Since Ra often took the form of a cat, people began associating the nine lives (Ra plus eight) with feline longevity. Whether you believe this theory is up to you, but other cultures have credited cats with having multiple lives, too. In China, for example, it’s also nine. Others, however, are less generous. Italy, Germany, Greece, Brazil and some Spanish-speaking regions apparently grant cats seven lives, while according to Turkish and Arabic traditions, they get six. In English lore, though, it has been nine for centuries. But gods aside, there’s a more universal and down-to-earth logic behind how the multiple-lives idea came to be. Cats have what is called a “righting reflex” — the ability to twist around quickly in mid-air if they fall or are dropped from a high place, so that they land on their feet. People undoubtedly noticed that they survived situations that would have killed or severely injured other animals. Because of this uncanny ability to walk away from disaster, the English came up with the proverb “A cat has nine lives. For three he plays, for three he strays, and for the last three he stays.” In other words, a cat’s hardy nature allows it to survive to a ripe old age lying in the sun after its early years of chasing mice and roaming.
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Today’s Wonder of the Day was inspired by name-hanna from live in canada. name-hanna Wonders, “do cats have 9 lives?” Thanks for WONDERing with us, name-hanna!
Have you ever heard someone say that cats have nine lives? What's up with that? Is it true? If so, who keeps count? To the relief of dogs everywhere, we can say without a doubt that cats have but one life to live. The “nine lives" story is just a popular myth that has been around for hundreds of years. Myths are old stories (sometimes called "legends") that typically feature a person, animal, hero, or event. Although they have no basis in fact, they usually try to explain some idea or natural phenomenon. So where did the myth about cats having nine lives come from? No one knows for sure. We do know, though, that it's been around for a long time. William Shakespeare refers to the nine lives myth in his play Romeo and Juliet. There is also an ancient proverb that claims, “A cat has nine lives. For three he plays, for three he strays and for the last three he stays." Some people believe the nine lives myth is related to cats' ability to always land on their feet. Cats are also known for their dexterity and agility. Over time, people witnessed cats survive in situations that surely would have severely injured other animals. Some people likely began to believe that cats must have multiple lives. In ancient Egypt, cats were sacred animals that were worshipped as gods. Ancient Egyptians believed that cats were divine creatures with psychic or supernatural powers. The idea that they could have multiple lives fit right in with their view of cats. But why nine lives? No one knows the answer to that one either. There are many possibilities. For example, the ancient Egyptian sun god, Atum-Ra, was believed to take the form of a cat on visits to the underworld. Legend has it that Atum-Ra gave birth to eight other gods and thus represented nine lives in one. Others believe the number may have come from China, where the number nine is considered lucky. The number nine — sometimes called “the trinity of trinities" — is also believed to be mystical in many religions and regions around the world. The myth that cats have multiple lives exists in many cultures around the world. It's not always nine lives, though. Some Spanish-speaking regions believe cats have seven lives, while Turkish and Arabic legends claim cats have six lives.
the eight story, the momentum was the same for each higher story. Thus, the reasoningsupports the claim. Part 2: Further Analysis1.Please read the articleWhy Cats Have Nine Livesby Jared Diamond. Our analysis did notattempt to answer the question of “Why” cats survive they way they do from differentheights. What are some of the assumptions the author makes that he uses in an attemptto answer this new question?2.If you examine the number of total injuries per cat from 2-5 stories fallen, what trend doyou spot? Get answer to your question and much more 3.Does it make sense that the number of cats falling from the 5th floor would be greaterthan those of the 4th? Why or why not? Get answer to your question and much more 4.How things like sample size vs population size or reporting bias alter our way of thinkingabout the data?5.What additional information might you want if you were going to alter your CER to make Get answer to your question and much more Get answer to your question and much more Upload your study docs or become a Course Hero member to access this document End of preview. Want to read all 3 pages? Upload your study docs or become a Course Hero member to access this document |
Why cats have nine lives worksheet answers
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