Step 1: Fold the longest edges of the paper together. Then open it out. 
Step 2: Fold the corners into the first fold. 
Step 3: Fold the paper in half along the first fold. Then fold in half again lengthways. 
Step 4: Open out the second fold. 
Step 5: Fold down the two sharp corners. 
Step 6: Fold the paper back along the second fold to make a triangle shape. 
Step 7: Grip the banger firmly by the two sharp corners. Flick it down quickly- and it makes a loud bang.How a paper banger works
The air is pressed inside during moving the paper banger downwards and the air suddenly is free when the inner layer is coming out. It is a small explosion. It is very similar to the way thunder sound is created.
Lesson Plan
Extended Resources
1. For more information on sound (Kayla and LaToya's project)
2. Science of Sound(Wired@School)
3. More fun with sound(University of Rhode Island)
Great job ladies! This is a good experiment and the students will love making their own paper banger. Their minds will be at work and thinking about sound.
ReplyDeleteGood job girls! The powerpoint had a lot of great information. Kids would love this. Great experiment!
ReplyDeleteGreat work! This is good hands on activity for kids to demonstrate sound. It would be fun for them to find out which type of paper works best.
ReplyDeletegreat job. this is cool kids would really like doing this in class. Would this work with any type of paper?
ReplyDelete