Class 10 Science | Chemical Reaction

Science · Grade 10 · Unit 15

Chemical Reaction

Physical vs chemical change · Reactants and products · Chemical equations

By the end of this lesson you can

🔍

Tell a physical change from a chemical change

🧪

Define a chemical reaction

✍️

Write a word equation and a chemical equation

🔢

Name reactants and products and count atoms

🧊Physical change

No new substance

Usually reversible

Melting ice, boiling water

🔥Chemical change

New substance forms

Usually permanent

Rusting, burning wood

The notes are free to read in full.

Presenter notes: Today we look at how substances change into new substances, and how chemists write those changes down in a few symbols.