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Technology: How To Make A Parachute

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A Parachute
A Parachute

Have you ever wondered, how can I apply all the things I am learning? Have you started Science subjects yet? Do you ever wonder if all you are learning is simply academic, and not practical in real life?

This is where technology comes in. It is the application of scientific knowledge for practical uses. This is what has contributed to the invention of those things that make our lives easier. Examples are automobiles, mobile phones and tablets, the internet, airplanes, and the list goes on.

So, how can you start? First, understand scientific principles, then use your creative imagination to see what you can do with that knowledge. So, let’s go on and make a parachute!

What You Will Need:

  • A plastic bag or light material
  • Scissors
  • String or thread
  • A small object to act as the weight, a little action figure or doll would be perfect

Instructions:

  1. Cut out a large square from your plastic bag or material.
  2. Trim the edges so it looks like an octagon (an eight sided shape).
  3. Cut a small whole near the edge of each side.
  4. Attach 8 pieces of string or thread of the same length to each of the holes.
  5. Tie the pieces of string to the object you are using as a weight (your action figure or doll)
  6. Use a chair or find a high spot to drop your parachute and test how well it worked, remember that you want it to drop as slowly as possible.

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An Octagon
An Octagon

How Did You Apply Scientific Principles?

1. Hopefully your parachute will descend slowly to the ground, giving your weight a comfortable landing.                       2. When you release the parachute, the weight pulls down on the strings, and opens up a large surface area of material. This allows air resistance to slow it down as it descends.                                                                                               3. The larger the surface area, and the larger the area of your plastic bag, the more air resistance, and the slower the parachute will drop.                                                                                                                                                                                 4. Cutting a small hole in the middle of the parachute will allow air to slowly pass through it rather than spilling out over one side, this should help the parachute fall straighter.

Some Terms Explained

Surface Area: This is the total area that the surface of an object occupies.                                                                              Air Resistance: This is the force produced by air which opposes an object moving through it.

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