Our Body : nutrition : fats + grease

Fats.  The smallest portion of the food pyramid and why it should be like that.  This is what we did to study this.

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You put water in a glass and then few drops of vegetable oil.  We made observations on what happened and how it looks.

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Then we added few drops of dishwashing liquid and drew and wrote what happened.

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Another experiment we did was to make butter with whipping cream.


We counted how many shakes it took to turn into butter.  We used two different sizes of jars.  We learned that the taller jar, with less cream, had more space to shake, so it took less shakes than the shorter, fuller one.


With dinner, we ate the butter with warm home made bread.  For a treat, it is so good.


To practice how to make tables, we made a table of percentage of fats in different foods.  We wrote 0% to 100% on the left side, and then we checked different foods and wrote them down in a column.


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We found most foods with 3%, 4% up to 8% fat, few with 20%.  Now we are in search, at the stores and everywhere, what is the highest percentage we can find.   We’ll see where we find it, and hopefully not something that ends up at our table!

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And finally, we rubbed some foods in a piece of heavy craft brown paper.  We waited for a while for the liquid to try.  If it was just water (in the case of apples and lettuce and raw potatoes) it dried up.  If it had fats, the paper stayed stained.

With this, we finished our unit of Human Body and Nutrition.  We had fun and we have already started a new unit, that I’ve shared a little a while back.


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