Скачать или смотреть Scientific Notation Explained | Large & Small Numbers + Practice Questions

Scientific notation is a system developed to represent extremely large and extremely small numbers in a way that is easy to read, write, and understand. In chemistry and physics, many values such as the mass of an electron are too large or too small to be written conveniently in standard notation.

In this video, you will learn:

What scientific notation is and why it is used
How to write numbers in the form a × 10ⁿ, where a is between 1 and 10
How to convert large numbers into scientific notation
How to convert small numbers into scientific notation

The LARS rule:
Left → Add to the exponent
Right → Subtract from the exponent

We also discuss how the direction of decimal movement affects the exponent and why the same rules apply to both very large and very small numbers.

📌 At the end of the video, you’ll find practice multiple-choice questions (MCQs) to test your understanding, including a real-life chemistry example involving the mass of an electron.

This lesson is ideal for:

High school chemistry students
First-year college chemistry students
Anyone preparing for exams that include scientific notation

🔔 Don’t forget to pause the video and try the questions before checking the answers!