Numbers, Ratios & Representations
Mathematical tools used to represent, analyze, and communicate chemical information.
You’ve encountered many of these skills in math and earlier science courses. In Science 10, they are used to describe quantities, compare substances, interpret data, and communicate results clearly.
While these tools are mathematical, they are essential scientific skills. They support laboratory work, chemical reasoning, and evidence-based explanations throughout Unit A.
Key mathematical tools
Ratios and Proportions
Use ratios to compare quantities and describe relationships between substances.
Scientific Notation
Represent very large or very small numbers clearly and efficiently.
Powers and Exponents
Understand how exponents are used in scientific notation and calculations.
Unit Conversions
Convert between units accurately to ensure measurements and calculations make sense.
Graph Interpretation
Read and interpret graphs to identify patterns, trends, and relationships in data.
Practice supports and refreshers for these skills will be added as you work through Unit A.
Why these skills matter
These tools support problem solving, data analysis, and accurate communication in chemistry. They allow you to explain relationships, justify conclusions, and understand what your calculations and graphs are showing.