Learning significant figures can be difficult in science. But, there is a reason to learn them. Scientists and engineers use significant figures to show how accurate their measurements are and how accurate the instruments used to collect the measurements are.

 Click the link to watch "Significant Figures and Significant Digits - The Rules" on YouTube:



The Rules of Significant Figures


  1. Non-zero numb...

The atom is the basic building block of matter and is an important topic an all science courses. The atoms if made of a nucleus at its center, consisting of protons (positively charged particles) and neutrons (neutrally charged particles). The nucleus contains all of the mass of the atom, so the atomic mass is the number of neutrons plus the number of protons (labeled in Atomic Mass Units, AMU).The number of protons present in...

Understanding the principles of Dimensional Analysis is not only an important skill in science it is also something you will use in your daily life, for the rest of your life. Once you learn the rules and the process of dimensional analysis, you will be able to convert anything in life - just stick with the three simple rules:

 Click the link to watch "Dimensional Analysis 3: Converting Units" on YouTube:


Click the link to watch "Dimensional Analysis 2: Metric Conversions" on YouTube:



 Being able to convert units between English and Metrics (and System International) is a fundamental concept in science. The common language in science is the System International (which is very similar to the metric system) and all scientists use these units as a standard. However, some regions of the world (like the Un...

 Click the video above to watch "Dimensional Analysis 1: Introduction to Dimensional Analysis - Metric Ladder" 

 Dimensional analysis is one of the most fundamentally important skills in science because it allows you to convert units between english and metric or SI units. Whether you need to convert mass, volume, temperature, density, speed, or any other measurement, dimensional analysis will get you to the right answer e...

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Introduction to Chemistry

The Atom

Ionic Bonding

Covalent Bonding

Chemical Reactions


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The Mole

Periodic Table


Craig Beals  |  Craig@BealsScience.com 

© 2019 Beals Science, LLC | United States

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