Amazing Facts: Fish Changing Sex, Life in Space, and Computer Programming
Explore fascinating topics such as fish changing sex, challenges of life in space for astronauts, and the basics of computer programming. Discover how gobies can change sex, the difficulties astronauts face without gravity, and the process of computer programming from algorithms to coding.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
13 / p.48 Reader s Bank Level 5 Can a female turn into a male? This does not happen often in the animal kingdom. But some fish, like gobies, have the ability to change sex. (A) Therefore, even when they have to find a partner to mate, gobies don t go too far away from home. (B) So what if there are only female gobies living in the coral? In that case, half of the fish can simply change their sex from female to male. (C) Gobies live near coral under the sea. Coral is a perfect place for these tiny fish because it protects them from big fish. It s dangerous for them to leave their home. And, interestingly, it only takes 30 days for gobies to change their sex. What an amazing ability!
14 _1 / p.50 Reader s Bank Level 5 Many people dream of becoming astronauts, but it isn t always fun. Life in a spaceship is quite different from life on Earth, and it can be difficult. The biggest challenge for astronauts is living without gravity because everything floats around. This makes eating and sleeping difficult. Imagine drops of juice or milk floating everywhere! This explains why astronauts must use straws. Similarly, astronauts must get inside sleeping bags and wear safety belts to sleep. This prevents them from floating around and getting hurt while sleeping.
14 _2 / p.50 Reader s Bank Level 5 Despite these difficulties, most astronauts say they can t wait to go back to space. It isn t hard to understand why. Imagine how amazing it must be to see views of planets and stars that almost no one else can see. It must be worth all the trouble.
15 _1 / p.52 Reader s Bank Level 5 Computer programming is a way of giving computers instructions about what they should do. So how do we make such a program? For example, let s say that you want to make a secretary program that lets you know when an email arrives from your teacher. The first step is to build an algorithm. An algorithm is a series of steps which are needed to solve a particular problem. If you have a real human secretary, you can just tell him or her, Please let me know when an email from my teacher arrives. Unfortunately, a computer is not as smart as a human being, so you have to give it detailed directions.
15 _2 / p.52 Reader s Bank Level 5 1. Check the mailbox every five minutes. 2. If there s a new email, check and see if the sender is my teacher. 3. If it is, show a pop-up on my screen. The next step is to write these steps in a language that computers can understand. Since computers cannot understand the English or Korean language, you must translate it into a programming language such as C++, python or Java. This translating work is referred to as coding.
