Root Hairs
Purpose:
To demonstrate that roots have root hairs.
You will need:
Magnifying glass, blotting paper, large plastic soft-drink bottle, peas, cress seeds.
Method:
Step 1: Cut the top from a used plastic bottle and rinse thoroughly. Place some blotting paper or paper towel around the inside of the bottle, near the bottom.
Step 2: Wedge some cress seeds between the blotting paper and side of the bottle.
Step 3: Add enough water water to fill the bottle to the bottom of the blotting paper. Leave in a warm, light place and watch carefully over a few days for the seeds to germinate.
Step 4: After the seeds have germinated (after 5-7 days), extract one of the plants and place it in a drop or two of water.
Step 5: Examine the root with a magnifying glass.
Hypothesis:
I think that in 2-3 weeks the cress seeds will grow roots and turn green.
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