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עמוד:11
After Reading Answer in your notebook 1 How did Copernicus change our understanding of the solar system ? 2 Why is Galileo called the "father of modern astronomy" ? 3 Why was the spacecraft that orbited Jupiter named after Galileo ? 4 How did Newton ' s discovery of gravity help us to understand space ? 5 How did Hawking help us to understand more about the universe ? 6 Read the following quote by Sir Isaac Newton . What does it tell us about how scientific knowledge is built ? "If I have seen farther than others , it is because I stood on the shoulders of giants . " 7 Complete the following sentences using the words below . a An . .. studies the planets and the stars . I •) A ... studies subjects such as algebra and geometry . c A ... studies the laws of motion , such as gravity . 3 A ... studies subjects such as biology and chemistry . 0 A ... studies the origin and nature of the universe . 8 Find the definitions of the words below . Write the word and its definition . ט argue & claim <§ j contribute < 3 expert 0 law f object observe g 3 origin Example : a . argue — disagree Definitions a thing that you can see and touch ; it is not alive an explanation of a natural or scientific process the place or time when something begins to exist disagree give time and effort to help something watch or study carefully say that something is true someone who knows a lot about something astronomer cosmologist mathematician physicist scientist These word endings ( suffixes ) show the agentthe person doing the action . -er ( reporter ) -or ( professor ) -ist ( artist ) -ian ( musician )
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