Hypothesis
If the amount of oil absorbed and contained is dependent on the materials, then the 10 Cotton balls, 1 Spoon, 1 Sponge and the dish soap will absorb 90% of the oil and contain 95% of the oil.
Independent Variable: Materials used.
Dependent Variable: Amount of oil absorbed/contained.
Control Variables: Amount of oil/amount of water, type of oil.
Independent Variable: Materials used.
Dependent Variable: Amount of oil absorbed/contained.
Control Variables: Amount of oil/amount of water, type of oil.