sO yUmMy!HeAdAcHe!! :3

* Monday, September 1, 2008 *

Acidity of Food

Introduction:

All substances can be classified as either acidic, basic or neutral.

1. Given the following results, present your data in a bar graph

2. Suggest one harmful effect of consuming too much acid.

it would cause high blood pressure

3. Name 3 types of acidic foods.

1)Cranberries

2)Oatmeal

3)Lentils

4.In some instances, our stomach may produce excessive acid. Suggest what a person may consume to threat this problem.

the person may consume alkaline food such as milk..

find out more> http://www.digestivecare.co.uk/Excess-acid---acid-indigestion-and-heartburn-treat_323_323_.html

5:10 AM

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MOULDY~bread experiments ^^

Experiment A -
To investigate the effect of temperature on mould growth

- 1 slice of bread

- 1 ziploc bag

- Thermometer

- A refrigerator

Name of student-in-charge : Stefanie

Experiment B -
To investigate the effect of relative humidity (moisture) on mould growth

- 1 slice of bread

- 1 ziploc bag

- A bottle cap full of water

Name of student-in-charge : Jasmine

Experiment C -
To investigate the effect of light on mould growth

- 1 slice of bread

- 1 non-transparent paper bag

Name of student-in-charge : Qi Fang

Experiment D - Control

- 1 slice of bread

- 1 ziploc bag

Name of student-in-charge : Claire

Conclusion :

Mould grows best in warm/cold, moist/ moist-less and dark/light conditions.

Questions to Ask:

1. Where and how should bread be stored to keep it free from moulds?

Bread should be placed in a ziploc bag and stored in a cool, dry place such as refrigerator to keep it free from moulds.

2. What other foods do you think might grow moulds if left exposed?

Foods such as cheese and fruits such as grapes.

picture taken from:http://www.mycolog.com/20-3_mouldy_cheese.jpg

picture taken from:http://www.penrithvet.com.au/a14.gif

3. Suggest 3 other ways of preserving food.

- Can ( involves heating up both jars and produce to kill of germs and then sealing the produce within the jars. )

- Dry ( including, dehydrating, smoking, sun-drying, air-drying and baking. )

- Vacuum seal ( a method whereby food is put inside a heavy plastic wrap and all the air removed; then it is sealed. )

read more at: http://www.preservefood.com/

4. Briefly explain how your suggestions above can help to preserve food.

- free from moulds

- food can last longer

2:16 AM

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