Chapter 1.3
Scientific Notation and Significant Figures Explained
Discover the power of scientific notation and significant figures in math and science. Learn to express extreme values efficiently and report results accurately for success in various scientific fields.
What You'll Learn
Identify significant figures in any number by recognizing non-zero digits and zeros between them
Convert very large and very small numbers into scientific notation format
Apply rounding rules to maintain precision and meaning in scientific calculations
Express numbers in the form X × 10^Y where X is between 1 and 10
Determine when to use scientific notation versus decimal places for measurements
What You'll Practice
1
Converting extremely large numbers like Avogadro's number into scientific notation
2
Converting extremely small numbers like Boltzmann's constant into standard form
3
Rounding measurements to three significant figures
4
Moving decimal points and calculating positive or negative powers of 10
Why This Matters
Scientific notation and significant figures are essential for working with real-world measurements in science, from atomic-scale quantities to astronomical distances. Mastering these skills ensures your calculations remain accurate and your answers are reported appropriately in all STEM fields.
This Unit Includes
5 Video lessons
Learning resources
Skills
Scientific Notation
Significant Figures
Standard Form
Rounding
Powers of 10
Precision
Decimal Placement
