Monday, March 23, 2009

Science Lesson 26

1. Explain the difference between oxidation and digestion.

Oxidation is the process of using fuel to make energy. Digestion is the process of making that fuel. They rely on each other to keep the body running.


2. Write down everything you eat in one day. Then compare the foods you ate to the foods shown in the food pyramid. How was your diet different? How was it similar? Di you eat many foods not shown?

I can already rule out meat. Whatever happens today, I will still be vegetarian.

Rice Cereal (Grain)
Dried, Chocolate-covered Mangoes (Fruit)

Cucumber, Cheese, and Hummus Sandwich (Lots of Protein, and Dairy)

Cheese Quesadilla with Red Pepper (Protein with Vegetable)


COMPARISON: First of all, I don't like that your food pyramid included no protein besides meat. Meat is murder. Icky icky murder. Also, I ate some foods that weren't shown, such as the pita bread in the quesadilla, and mangoes.


Though that's okay. Actually, eating different and exotic foods like that gives you more nutrition that just plain ole' bread, because it is made of a lot of different things; that allows a change from the straight wheat of bread.



Below is an example of a vegetarian food pyramid that includes non-meat protein sources.



3. Why are vitamins and minerals called micronutrients?

Because they have very little concentration in foods.


4b. Make a nutrition collage.




EXAM

1. Why does a potato taste sweeter after you have been chewing it for a while?

Because starch has sugar locked inside it. Saliva (which by the way is secreted more when you chew) breaks down the starch outside to get to the sugar inside.


2. What is the difference bewteen complex and simple carbohydrates?

Starches (complex) are more advanced than sugars because it's like a crystal. It has other nutrients locked inside it, such as starch. Sugars instantly release their contents when chewed.


3. Why are fats important in our diet?

They add energy if you are instantly active afterwards.

4. How do our bodies use vitamins and minerals? Are they essential to our health?

Absolutely. Vitamins and minerals help organs grow, brain tissue develop, and many other things happen faster than usual. They are great to help you grow up to actually have a good heart, brain, and immune system. If you have, say, lots of OMEGA-3 as a baby, you'll have a really strong neural system.

5. Name three important minerals and three important vitamins.

Potassium, Iron, and Fiber. Vitamins A, B, and C

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