1. Dehydrated Potato • Take your paper and mark it with the word "salted" and place it on a flat surface, such as a
table.
Purpose 1. • Place one of the dishes on the paper and the other next to it.
To demonstrate the
process of dehydration • Fill each dish with an equal amount of water (the water level should be high enough to fill the
dish, but not so high that it overflows).
Required materials 2. • Stir two table spoons of salt into the dish marked "salted'.
1 Potato (small or
medium sizes will
work best) •Using your knife and your cutting board, cut the potato in half. Make sure to cut the potato so you have
two equal size pieces.
•Place one-half of the potato, flat side down, into the dish marked "salted".
2 Dishes or Saucers 3.
(deep enough to hold
about a half-inch of • Place the other half of the potato, flat side down, into the dish with plain water.
water) 4.
• Let the potatoes sit in the dishes undisturbed for about an hour.
Cutting board
Knife Result
Salt (about 2
tablespoons) Result
Water The salt water is acting as a dehydrator by drawing
moisture out of the potato. As the water is drawn out
of the potato, the potato begins to get dehydrated. As
it dehydrates, the potato shrivels.

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