A student wanted to look at plant growth in five different soil samples. He planted the same type of seeds in identical containers and left them together in full sunlight. He gave each plant the same amount of water and charted the growth of each plant stem. What is the independent variable in this experiment?

f Seeds
g Container
h Light
j soil

Question

A student wanted to look at plant growth in five different soil samples. He planted the same type of seeds in identical containers and left them together in full sunlight. He gave each plant the same amount of water and charted the growth of each plant stem. What is the independent variable in this experiment?


f Seeds 
g Container 
h Light 
j soil

anonymous · Answer

You're changing the soil samples. The growth is the dependent variable, and the independent variable is soil, so J

anonymous · Answer

Soil is an independent variable or also known as the manipulating variable.  Seeds, container and light would be fixed variable and growth would be responding or dependent variable