VIDEOS:
https://youtu.be/Q0LBegPWzrg
https://youtu.be/uCmo9a8k5lQ
https://youtu.be/vl4g7T5gw1M
EXPERIMENTS DONE IN CLASS:
- Roller coaster:
https://www.youtube.com/watch?v=Ehx1P4adv6I
https://erinmschumacher.files.wordpress.com/2013/03/roller_keandpe.gif
- Car and balloom:
https://www.youtube.com/watch?v=IvDlXIzpdOE
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