What is control, constants, independent and dependent variable, experimental and control group?

1) Control Group - Group that does not receives the treatment.

2) Experimental Group - Group that receives the treatment.

3) Constant - The variable you keep the same.

4) Independent Variable - The variable you control.

5) Dependent Variable - It depends on the independent variable.

Example:

You want to know how much taller plants will grow with fertilizer. You do an experiment. Flower A receives fertilizer but flower B does not. Both flowers receive the same amount of water and sunlight. The control group would be flower B, the constants would sunlight and water, the independent variable would be the fertilizer., the dependent variable would be the plant's height, and the experimental group would be flower A.