Metals and Rusting Iron

Topics: Iron, Copper, Chemical element Pages: 8 (229 words) Published: January 5, 2015
Metals and Rusting Iron
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

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