Alquero
Rollon
Title
“ The Effect of Various Metal Activity
(Zinc (Zn), Magnesium (Mg), and
Copper (Cu)) in the Color of
Rainwater and Amount of Rust in the
Iron Nail “
Hypothesis
If the type of metal that has the highest activity will be used , then there will be the least amount of rust found in the nail and the color of the rainwater would be the lightest.
Independent Variable
• Types of metals used in wrapping
Title: “ The Effect of Various Metal Activity (Zinc (Zn),
Magnesium (Mg), and Copper (Cu)) in the Color of
Rainwater and Amount of Rust in the Iron Nail “
Hypothesis: If the type of metal that has the highest activity will be used, then there will be the least amount of rust found in the nail and the color of the water would be the lightest.
Independent Variable: Types of metals used in wrapping
Repeated Trial
Zinc
Magnesium
Copper
2
2
2
Dependent Variable: Color of rainwater
Amount of rust
Controlled Variable: Nail without any metal wrapped in it.
Improvements:
Make the duration of investigation longer. (2 months)
Use other type of water (rainwater)
Use other types of metals such as copper and zinc.
Dependent Variable
Color of rainwater
Amount of rust
Constant Variable
Amount of water
Type of nail
Amount of metals (mass)
Duration of experiment
No. of beakers
Type of water used
No. of nails