Courses

  • 9 Lessons

    Sec Sch Chapter 16 Periodic Table

    The development of the Periodic Table started in the 1800s as chemists began to recognise similarities in the properties of various elements and place them in families. In 1869, Russian chemist Dmitri Mendeleev created the framework that became the modern periodic table, leaving gaps for elements that were yet to be discovered. While arranging the elements according to their atomic weight, if he found that they did not fit into the group he would rearrange them. This content-heavy topic is the first chapter most secondary 4 students will be taught. The course is designed with a refreshing emphasis on observation and understanding of the difference between elements in the same group and periods. This course is designed to teach students the different physical properties of elements in the same period as well as some special properties shared between certain element groups so students can better appreciate the order and design of the Periodic table, and draw trends and hypotheses on anomalies and applications of elements found in the Periodic Table.
  • 12 Lessons

    Sec Sch Chapter 17 Energy Changes

    Chemists like Humphry Davy and Svante Arrhenius played important roles in providing a comprehensive understanding of what happens in chemical reactions. A new era of electrochemistry started when Humphry Davy (1778–1829), a British chemist, built a powerful battery to pass electricity through molten salts. This era resulted in advancements made in chemistry such as this chapter on energy changes. This chapter is a difficult chapter for most students as it introduces a unit of measurement that most students will not be used to. That being the unit of measurement for energy or Kilojoules. Having this new unit might possibly confuse or scare students initially. But once that hurdle is overcome. This chapter becomes a lot simpler. Which is what this course aims to do. With simple to understand lectures as well as challenging exam questions taken from schools all across Singapore. Students will be able to seamlessly overcome what was once a massive hurdle and go on to ace this chapter. Making even Humphry Davy proud.
  • 6 Lessons

    Sec Sch Chapter 18 Rate of Reactions

    In this chapter, students are mainly taught  the factors affecting the rate of reaction and the energy changes during a reaction. Mastery of this chapter allows students to understand the importance of controlling variables in making comparisons. This course is designed for students to have a confident approach when dealing with questions from this chapter as well as for students to flawlessly ace such questions. More importantly, it will review concepts taught in Chapter 11, 12, and 13 as cross references to further examine the command of students’ abilities in Chemistry. As such, this is the application of chemical concepts across many major themes and should be taken with care to pursue Chemistry to a higher level.

  • 3 Lessons

    Sec Sch Chapter 19 Ammonia

    Although he received the Nobel Prize in Chemistry for the synthesis of ammonia, Haber was controversial for his role in developing Germany's poison-gas program during World War I. Fritz Haber's synthesis of ammonia from its elements, hydrogen and nitrogen, earned him the 1918 Nobel Prize in Chemistry. His process was soon scaled up by BASF’s great chemist and engineer Carl Bosch and became known as the Haber-Bosch process, considered by many as one of the most important technological advances of the 20th century. Haber’s breakthrough enabled mass production of agricultural fertilizers and led to a massive increase in growth of crops for human consumption. Despite the uniqueness of its history, this gas is not unfamiliar for its unique smell to students; a smell that pierces the nostrils of any student brave enough to take a sniff, leaving a most memorable impact for the next few days as a nasal neuronal recall. This gas is the main feature of chapter 19 with a main focus on the procedure and conditions needed for its creation. The course is designed to aid students to model scientific breakthroughs and appreciate the importance of industrial scaling, hoping to inspire students that interests in chemical development and research could lead to a lofty prize: the next Nobel Prize for the invention of a gas reeking of flatulence might just go to you.