Define and Inquire

I will make a cotton ball crossbow, giving an example of kinetic energy.

Pros

• The ammo I will use is soft, so people won’t get hurt if somebody accidentally shoots them.
• It will be fun to make and use

Cons

• It might cause some injury if not used properly
• It could possibly be challenging to manufacture 
  

  Develop and Plan ·       Links to videos of things I wanted to make at first. https://www.youtube.com/watch?v=2OPJteaKEXo https://www.youtube.com/watch?v=GnmN9L5eP5s https://www.youtube.com/watch?v=JuPSDuS3UiA  Materials List the materials and tools needed. Hot glue Plastic tube String Stick Thin wood board What I did on what day Day 1: I will cut out the extended parts of the crossbow. Day 2: I will cut up a plastic tube for the barrel. Day 3: I will glue it together and make a slit for the trigger. Day 4: Today, I will make the trigger and glue it in. Day 5: Today, I will make the handle. I successfully made a crossbow.

Create and Improve

The structure of the crossbow is excellent, and it functions just fine, but I think it would work better if I had a larger trigger and maybe should’ve sanded the front handle first. Overall, I would say that I successfully made a crossbow.