1. Iron

2. Introduction Iron is the sixth most abundant element on earth.
The chemical symbol of iron is “Fe”.
The atomic number of iron is 26, and the atomic weight is
Iron is mostly extracted from iron ores.

3. Iron in Biology Iron is essential to most life forms.
Iron is an essential component in oxygen transportation, cell growth and differentiation.
Excess iron can be toxic.

4. Recommended Dietary Allowances for Iron for Infants (7 to 12 months), Children, and Adults
Age
Males (mg/day)
Females (mg/day)
7 to 12 months 11
1 to 3 years 7
4 to 8 years 10
9 to 13 years 8
14 to 18 years 15
19 to 50 years 18
51+ years

5. Dietary Sources Foods that contain iron are 1. Fish 2. Beans
3. Poultry
4. Oatmeal
5. Soybeans
6. Spinach and more…..

6. Experiment Obtain three different cereals in different ziploc bags.
Empty out one cereal in a measuring cup.
Use your pencil to crush the cereal.
Use magnet to attract the iron particles from the crushed cereal.
Dust the iron particles off on a white sheet of paper.
Count the number of iron particles and record that number.

7. Number of Iron Particles
Experiment
Determine the amount of iron in three different
cereals.
Name of Cereal
Number of Iron Particles

8. Number of Iron Particles Graph

9. Resources