Seed Dispersal Lab Report - Rick Parapperi
Seed dispersal is a mechanism used by many plants to spread their genetic material far away from the parent. Some common methods of dispersal are wind, water, explosion, fire, and animal. Wind dispersal is a method many plants have developed which allows seeds to fly with a blowing wind. The seeds may end up anywhere when the wind begins to stop blowing, making this a very effective way of sending out seeds. An example of this is dandelions, their seeds are light, allowing them to be blown by a gentle breeze. Water dispersal is a method where seeds that fall from trees living near water bodies get carried away by the current. Water can take the seeds to islands very distant from the starting point. Plants like the…show more content… Using tape, attach two beans to the front of the glider.
How to make dispersal mechanism #2(Helicopter)
Fold piece of paper once, from the shorter side
Cut paper in half on the fold
With one half sheet of paper, fold in half once more and cut down along the crease
Repeat this once more
With a pencil draw a line across the middle of the paper
Draw a line below the first line
From the first line drawn, draw a line to the top of the paper
On the second line, draw two dots splitting the bottom half of the paper into thirds
Cut the line drawn from the top of the page to the middle of the line, where there are no dots
Where two dots are drawn, cut from the side to the dots on both sides
On the short side, fold flaps to create a base
Fold up a small part of the bottom and tape down
On the top, fold down
Do the same on the other side, but fold in the other direction, backwards and up
Bring both folds up 90 degrees
Insert two beans into one of the folded areas on the side of the helicopter
How to make dispersal mechanism #3(Flat glider)
Stack two pieces of paper on top of each other
Orient the papers into