Investigating how plants grow

This week students were challenged to grow the tallest bean plant.  They created their own experiements to investigate how to grow the biggest bean plant. Some students thought that feeding different substances to the plant might help them grow.  Some students decided to plant their beans in a variety of materials.  Another group thought that they would play different music to their bean plants to see which type would help the bean grow fastest. 


What did you discover?


Were the tests fair?


How could the test be improved?



How could you show your results clearly ?