Introduction >Home Page >About this Guide >Table of Contents Contents 1. What you can do 2. Water 3. Ecology 4. Amphibians 5. Environmental Issues 6. Keystone species 7. Get Wet!- Field Study Ideas 8. The Zoo Experience 9. Frogs & Friends 10. Case Studies 11. Resources 12. Glossary |
Wetland Curriculum Resource
Unit 5. Environmental Issues - 5.3 ALL I NEED IS THE AIR THAT I BREATHE Purpose: To observe the effects of sulphur dioxide on plants. What You Need: 2 healthy bean plants :: 1 L dilute sulphuric acid :: sodium sulphite :: 2 plastic bags (clear if possible) with twist ties :: small beaker :: safety goggles :: napkin or Kleenex :: graduated cylinder What You Do: Before this activity: Prepare the dilute sulphuric acid. Mix 5.5 ml of concentrated sulphuric acid slowly with 500 ml of cool water. Let stand, and then dilute to 1 L. WARNING: Always pour acid into water. Never pour water into acid. Wear goggles.
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