Popcorn Lab

Today in class we did a lab about radiation. For the lab, we put some kernels in a brown bag, and put them inside a microwave for 1 minute and 30 seconds. When we took the  brown bag out, the kernels popped into white, fluffy popcorn! How you ask? Well, the microwave makes heat radiation that heats up the small part of water inside a kernel until it expands into a water vapor. This causes the rest of the kernel to also expand, eventually breaking the outer shell and POPPING. In conclusion, the popping of popcorn is a cool, yet scientific process.