Biology as a science

 Qualitative V.S.  Quantitative

 Adjective which describes a quality  Color (Red, blue)  Texture (Smooth, rough)  Shape (Round, square)  Speed (Fast, slow)  Size (Large, small)  Distance (Near, far)  Temperature (Hot, cold)

 Numerical measurements which describe:  Color (700 nM)  Texture (50 grit sandpaper)  Shape (25 cm diameter circle)  Speed ( 75 m.p.h.)  Size (150 m)  Distance (130 miles)  Temperature (37.5  C)

 You have just decided to open your own tomato company. You know that the more tomatoes you grow…the more money you will make. However, you need to buy some supplies which will also cost money.  You have just bought all the materials needed to launch your new business, the only thing left is the fertilizer.

 Three different companies want your business, we’ll call them A, B, and C.  All the fertilizers are roughly the same price, but you need to know which one works the best.  Now its time to design an experiment.

 Independent Variables:  Dependent Variables:  Control:  Constants:

A Control CB Pots containing tomato seeds and fertilizer.

A Control CB What conclusions can you draw from these data?

WeekFertilizer AFertilizer BFertilizer CControl 13 cm6 cm2 cm3 cm 28 cm10 cm5 cm7 cm 314 cm17 cm7 cm11 cm 418 cm25 cm8 cm17 cm 530 cm43 cm15 cm21 cm Construct a graph for the following data.