🧪
Experiment
PFD Buoyancy Test
Test what floats and what sinks — and how life jackets keep you up.
30 min Easy
📋 What You'll Need
- •A pool or calm shallow water
- •A properly fitting life jacket
- •An adult supervisor who can swim
- •Items to test: a coin, a plastic bottle, an apple, a rock
👣 Step by Step
🔍 What to Observe
- •Which items floated and which sank? Why?
- •Did the life jacket hold your head above water without effort?
- •What body position kept you floating best?
💡 Tips & Safety
- •Only test with a properly fitted, Coast Guard-approved life jacket.
- •Never test in deep or moving water — always have an adult supervisor.
- •A life jacket keeps your head above water even if you're unconscious.