Chemical Reactions: Wow Factor
📋 What it is
Dramatic reactions (colour changes, foam, fire) are atoms rearranging into new substances.
🗣️ Coach says
The flashiest science demos — colour-changing liquids, erupting foam, sudden flames — are all chemical reactions. Atoms rearrange into new substances, and the colour, gas, or heat is the visible clue. The bigger the “wow”, the more energy or gas the reaction released.
🧠 Memory hook
Big reactions = atoms rearranging fast, releasing colour, gas, or heat.
😂 Giggle
What do you call a magician who uses real science?
A wizard of cause and effect!
😲 Whoa!
The “elephant toothpaste” foam eruption is a reaction releasing oxygen gas so fast it whips soap into a giant foam tower in seconds.
✅ Quick check: A liquid suddenly turns bright blue when you add a drop. Reaction or trick?
Say your answer out loud first — then reveal.
A reaction — a new substance with a new colour formed; colour change is a sign of a chemical reaction.
A colour change signals new substances, a hallmark of a reaction.
🧪 Try it! (2 minutes)
Mix baking soda and vinegar in a bottle with a balloon on top. The gas from the reaction inflates the balloon.