🧪
Experiment
Salt Tolerance Test
Explore how salinity changes affect seagrass and mangroves.
20 min setup, observe over several days Medium
📋 What You'll Need
- •3 cups or small jars
- •Water from a tap
- •Table salt
- •Measuring spoons
- •3 small plants or cuttings (try mangrove propagule, seagrass, or a leafy houseplant for contrast)
- •Marker to label cups
👣 Step by Step
🔍 What to Observe
- •Which plant did best in brackish water?
- •Did any plant wilt in fresh water? In full salt?
- •Why might mangroves survive where other plants don't?
💡 Tips & Safety
- •Mangroves are adapted to brackish water — that's why they thrive along the lagoon.
- •Seagrass needs the right salinity range to grow back after a freshwater flood.
- •Don't drink any of the cups. Wash hands after handling.