https://docs.google.com/presentation/d/17apvVv_fubiWjm9sLjBuTlbfJiJ5VC21EQt8pZhmAYU/edit?usp=sharing
Source: video by Harry Kindergarten Music
http://www.ngkids.co.uk/science-and-nature/butterfly-life-cycle
Source: Article by National Geographic Kids
https://docs.google.com/forms/d/e/1FAIpQLSesQr1UGnwrLcVAdZUjGLBQrxLuilWC1jUDgVmcuB0S5FogIw/viewform