Science PBL Project Questions

1. What body system did you pick to build as a working model?

I picked the digestive system to build as a working model.

2. Why have you decided to build this body system as a working model?

I decided to build this system because I have always been interested in this system. As a boy, I have always wondered how food turns into feces. My parents would always tell me, “eat your vegetables because it is good for you and gives you nutrients.” I would wonder how the vegetables could give me all this energy. I have also thought of a lot of cool ideas for my system and how it should function using hoses.

3. What materials are you going to need to complete your build?

  • Cardboard boxes (a lot for the body and head)
  • Some Color paper (black, white, red)
  • A few Markers (all colors)
  • Glue (at school)
  • Hot glue (at school)
  • Clear Hose (for esophagus) about 1 inch thick and half a meter long.
  • Big hose (wrinkled for large intestine) about 2 inches thick and a meter long
  • Small Hose (wrinkled for small intestine) about 2 centimeters thick and 1 and a half meters long.
  • 2 Food Coloring (green, brown)
  • 20 Rocks (small rocks from beach)
  • 1 Bucket (for water at end)
  • Water (about a cup)
  • Scissors (at school)
  • 3 Spray paint (red, black, brown) if not available, use normal paint
  • 2 Balloons (for liver, red)
  • 2 Ziplock Bags (big one for stomach)
  • A meter String (for jaw)
  • 1 Filter (to prevent rocks from going through, small)

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