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hyunah
hyunah asks:
Q:

science project ideas

how much of an apple is water?
In Topics: Science fair
> 60 days ago

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Expert

greenprof2
Feb 3, 2009
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What the Expert Says:

A lot! fruits and vegetables are 80 to 95 percent water; meats are made up of 50 percent water; and grains, such as oats and rice, can have as much as 35 percent water. You can do an activity that reveals the percentages of water in the foods we eat. Get a slice of bread, a carrot, an apple, popped popcorn, a potato, celery, an orange and a banana. Make a 7-column chart to record data. The column headings include food, estimated and actual fresh weight, estimated and actual dried weight, difference and percentage of water. Estimate then weigh, slice, dry and re-weigh each food. You can graph the fresh and dried weights on a bar or line graph and your child can write a summary of their findings.  Michael Bentley, Expert Panelist: Science Education

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kelvinw
kelvinw writes:
80 to 95 percent
> 60 days ago

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