Cut the plastic bottle as shown in image 1. Be careful, because the plastic edges of the bottle may be sharp. Place the plant(s) in the bottom part of the bottle and cover their roots with soil. Wet the soil thoroughly with water, adding the water bit by bit (image 2). Don’t drench the soil, but make sure the water has seeped through the soil. Place the thermometer in an area where you can clearly read it when the biome is assembled. If needed, tape the thermometer in place. Place the cap on the top half of the bottle, and gently push the top half onto the bottom half (image 3). Record the temperature, and place your biome in direct sunlight. Write down your predictions. What do you think will happen in the biome over the next five days?