Bobby and Sam decided to plant a vegetable garden. Sam had heard that earthworms help produce fertile soil. He said: 'Let's
buy worms from the bait shop and add them to some of the garden soil before planting seeds. We can see if the seeds grow
better in the soil with the worms. This is like a science experiment Bobby replied,
What would be a good research question for Bobby and Sam's experiment?
A)
How can we make our seeds grow?
How many earthworms will make the seeds grow?
Seeds grow best in soil that has earthworms added.
D)
Do seeds grow better in soil with added earthworms?