What is Chemistry?

Categories Chemistry

Course Description

What is Chemistry? is an essential introductory module that opens the door to the microscopic world of matter and its transformations. Chemistry is often called the “central science” because it bridges physics, biology, geology, and environmental science.

This lesson lays the groundwork for understanding how substances interact, change, and shape the world—from the oxygen we breathe to the materials in our smartphones. Whether you’re a curious learner or preparing for a career in science, this course provides the molecular lens through which everything becomes connected.

What You’ll Learn

🧪 By the end of this lesson, you’ll be able to:

  • Define chemistry and explain its significance:
    • Chemistry is the study of matter—its composition, structure, properties, and the changes it undergoes
    • Learn how chemistry underpins fields like medicine, engineering, agriculture, and environmental science
  • Understand what matter is:
    • Matter is anything that has mass and takes up space
    • Explore the states of matter: solid, liquid, gas, and plasma
    • Recognize how matter behaves and transforms under different conditions
  • Learn about atoms and elements:
    • Atoms are the basic units of matter, made of protons, neutrons, and electrons
    • Elements are pure substances consisting of only one type of atom (e.g., hydrogen, carbon, oxygen)
    • Discover how the Periodic Table organizes elements by their properties and atomic structure

Who This Lesson Is For

This lesson is perfect for students beginning their journey in science, educators introducing chemistry, and anyone curious about the molecular makeup of the world.

A free course by

Course Duration: 35m
Course level:Beginner

Requirements

  • No prior chemistry knowledge required
  • Curiosity about the natural world

Target Audience

  • - Middle and high school science students
  • - First-year college chemistry majors
  • - Educators teaching introductory science
  • Future healthcare, engineering, and environmental professionals
  • Lifelong learners fascinated by how things are made