||We know plants need CO2, light, water, nutrition, and something to root in to thrive. We also know plants that grow near other plants don't grow as fast as plants that grow alone. We are wondering how different conditions affect plant growth.
||How does the temperature of the water effect how tall the plant grows?
||If the water if room temp. then the plant will grow fastest. This is because cold water could keep the plant in dormancy but hot water could burn it.
||1. Put 9 seeds in each of 3 Petri dishes and label them cold, regular, hot.
2. Then water each with 2 teaspoons of water. Water the cold with 50 degree water the warm with 70 degree water and the warm with 90 degree water.
3. Water the plants the same way every day.
4. Record the height of the of the plant in centimeters every day.
||Room temp. water helps the plant grow, rather than cold or hot water. We figured this out since on the final day we finished making our observations and saw that the room temp. root was 36 mm, the cold was 34 mm, and the hot was an average of 9 mm since three of those seeds sprouted. We figured out that Nasturium seeds germinate best when around 60-70 degrees fahrenheit and room temp. is around 70 degrees fahrenheit so it made sense for the room temp. seeds to sprout the best, rather than the hot or cold water temperatures.
||Middle School Students (grades 6,7,8)
||DeWitt Middle School