My Question: Will my modal arm work
Hypothesis : The balloon will work like a muscle and move the arm by contract and relax
Materials: Cardboard tubes ,balloon ,Elastic band ,Pin ,Paper clip and Tape
Procedure that we used on slide 6 to 14: slideshow
Results:
Conclusion: My hypothesis was right a the balloon contracted and relaxed to move my arm
hi Eliya
Your work is very good. This is a very good way to show how the body works.