Element around us

Element around us

Storyboard Text

  • WELCOME TO CHEMISTRY!
  • Welcome to Chemistry Class! How you ready?
  • YES, WE ARE READY!
  • LESSON OBJECTIVES
  • Today, we are going to talk about the third topic, that is, the periodic table of elements. Come on, James! Give out the handouts!
  • Unit 1 -Topic 3Parodic Table
  • SEEWO
  • Lecture Discussion
  • Unit 1 -Topic 3Parodic Table
  • Students, do you know the crust? Do you know what makes up the earth's crust?
  • On Friday morning, all the students were waiting for Ms. Candice to come out to meet them at the door of the chemistry classroom! Let's have a look!
  • Students Answering the Questions 1
  • Unit 1 -Topic 3Parodic Table
  • All the students entered the classroom, very quiet. Ms. Candice introduced the lesson objectives of this class and asked James to send handouts to each student.
  • Students Answering the Questions 2
  • Unit 1 -Topic 3Parodic Table
  • Ms. Candice set up guiding questions to encourage students to actively discuss in groups, use computers to query relevant materials, and let one student share the answers after 10 minutes.
  • Teacher announced the end of class
  • A Classmate told about the largest element in the earth's crustElement cardElement symbols: OAtomic number: 8Relative atomic mass: 15.9994Period: 2Group:16
  • We all live in this world now because weall breathe oxygen, which is an important part of the air we breathe and of theEarth's crust. Oxygen is the most abundant and widely distributed element inthe earth's crust, and the most important element that makes up the living andnon-living world, with 48.6% of the earth's crust. Singlet oxygen makes up20.9% of the atmosphere.
  • A Student told about the second largest element in the earth's crust: siliconElement cardElement symbols:SiAtomic number:14Relative atomic Mass:28.0855Number of Electron shells: 3Period:3Group:14
  • Silicon is one of the most useful elementsto mankind. Most are used to make alloys including aluminum-silicon and ferrosilicon(iron-silicon). These are used to make dynamo and transformer plates, engineblocks, cylinder heads, and machine tools and to deoxidize steel.
  • The teacher announced the end of class and assigned homework to the students
  • OK, students, this is all the content of our class. Today our homework is Microsoft forms. Please click to complete it in teams. Goodbye, students
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