Rainforests create their own wet climates through transpiration, condensation, and precipitation.

How to build a mini rain forest.

Materials

• 2 litre plastic drink bottles
• Stones or gravel
• Potting soil
• Plant Cuttings
• Plastic bags and bag ties

Procedure

1. Place a layer of stones on the bottom half of the plastic drink bottle.
2. Add a two to three inch layer of potting soil on top of the rocks.
3. Plant a few plant cuttings making sure all roots are covered.
4. Water the plants until the soil is moist.
5. Cover one of their plant cuttings, from the base to the top, with a plastic bag. Use a bag tie to secure the bag at the stem.
6. Place the bottles in a warm, sunlit area.
7. After several hours, make observations about the plants in bottles.

Analysis

Explain the differences observed in relation to transpiration, condensation, and precipitation.