A student wanted to see which type of fertilizer would make a plant grow taller faster, "Happy Plant" versus "Amazing Bloom".
He took a 1-month old tomato plant and a 1-month old rose plant, and put one cup of "Happy
Plant" fertilizer on the rose plant, and one cup of "Amazing Bloom” fertilizer on the tomato
plant. The student kept everything else the same - he watered both plants both the same, and
put them both next to each other in the sun. The student measured how much each plant grew
(in centimeters) after two month's time.
What is wrong?
Better experimental design:

The statement is : "to see the baby growing inside her".

Answeramino acids;

Answerthis solution will not form a precipitateexplanationsolubility equilbrium:         pbf₂(s)  ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is    (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as    then, we can interpret  q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually  forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product:     since q = 2.7  × 10⁻⁸ < ksp =  4  ×  10⁻⁸, a precipitate will not form.