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Chemical Kim: Iron Experiment

9:48 AM, May 17, 2013   |    comments
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Let's have fun with the metal we eat in our cereal and turn it into a liquid magnet! Did you know when you eat cereal fortified with iron you are actually eating bits of metal? Why not pull out that metal and do some fun science!

To pull out the iron from cereal:
You will need:
1 box of cereal (100% fortified with iron), blender, water, and a magnet.

Now Try This:
1. In a blender place one complete box of cereal and blend to sand like consistency.
2. Place the blended cereal into a bowl and add water.
3. Place a strong magnet into the cereal water-mixture and stir for a few seconds. Remove the magnet and you will see small pieces of iron collected.

To make the liquid magnet:
You will need:
small iron fillings, vegetable oil, strong magnet

Now try this:
1. In a small dish place iron fillings.
2. Using dropper amounts add vegetable oil until you have the viscosity of your mixture close to the viscosity of honey.
3. You can create unique spikes in your liquid by moving the magnet on the outside of the dish.
4. Using a magnet you can have fun playing with your magnetized liquid and make the substance move in monster/ghost like movements. Very fun!

Explanation:
Iron is an important metal (mineral) needed for the human body. It is required for the hemoglobin molecule found in red blood cells. 10-18 milligrams is the recommended daily allowance for children and adults. When the metalliciron found in cereals enter your body, hydrochloric acid reacts with the iron so it can be utilized.
Iron is attracted to a magnet which is a physical property. This attraction is caused by the alignment of the electrons in the iron atoms.

Ferrofluid is a liquid that when in the presence of a magnet is strongly magnetized. It is a colloidal liquid containing iron dispersed in oil. It also contains a surfactant which allows the iron and the oil from separating in the presence of a magnet. Spikes are created with a magnet because of the surface tension of the liquid. This is very fun science!

For more ideas: www.chemicalkim.com

 

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