I make YouTube videos about science. I also write books and make TV shows and stage shows.

The Amoeba Sisters is a YouTube channel started by sisters Sarina Peterson and Brianna Rapini in July 2013, and it specializes in teaching biology concepts at the high school level (and beyond) by using illustrated cartoons. Brianna Rapini is a former high school biology teacher and worked in three different Texas public school districts for a total of 12 years. Sarina Peterson is a former program analyst in a large Texas public school district, and she is a self-taught cartoonist who learned to draw on YouTube. The channel was originally created as a way to make memorable and short biology videos that could be used in lieu of lengthy lectures so that more time could be available for class discussion, labs, and student creation.

Need help with Chemistry? Whether you're in high school, college, AP or IB courses, these videos can help! They are also targeted to students studying for the AP Test, SAT, MCAT, DAT, and OAT exams, as well as students in nursing, nutrition, pre-med and pre-vet programs. We'll cover the introductory topics patiently and clearly, using lots of examples, analogies and practice problems. The main topics covered in this library are: Significant Figures, Scientific Notation, Density, Stoichiometry, Nuclear Chemistry, VSEPR Theory, Atomic Structure, Covalent and Ionic Bonding, Thermochemistry, and Gases.