Yoon Hearn » Home


With the Hearn you'll Learn…. about SCIENCE!!
I am passionate about how things work, why things work, and how everything is connected. This is my fifth year teaching Biology and Chemistry at Costa and I am very excited to once again help students think and question our natural world.
I graduated with a biology degree from UC Berkeley - Go Bears!!! I love eating spicy food and reading books. I love the outdoors and watching animal documentaries.

I look forward to getting to know my students and parents. Have a wonderful year Mustangs!!

Mrs. Hearn