i am doing a science fair project that is due monday. I did which brand of potting soil make plants grow the best. i tested 3 different brands of potting soil and i grew zinnias. they were all watered the same and received the same amount of sunlight. i need to know what my control is. Can any one help??
PLZ I need help wiith my science fair project!!?
A control is one you didn't do anything fancy with. For example, if you water each one with different things, the one watered with plan water would be your control. Did you do one with plain dirt? Thta'd be the control .
skates
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment