What is cancer, and how does it start? Find out how genetics play a role, which types of cancer are the most prevalent, and what is being done to fight this deadly disease.

Phil demonstrates buoyancy using different types of fluids and different objects. He defines fluids and explains why air and solids such as sand can both be fluids.

Hank illustrates the differences between plant and animal cells. Both are eukaryotic cells, but they have their own unique characteristics. Hank also explains why humans cannot eat wood and plants in the way that other animals can. Key Words: Eukaryotic Cells, Prokaryotic Cells, Organelles, Cytoplasm, Cell Wall, Cellulose, Photosynthesis, Plastids, Chloroplasts, Central Vacuole

Beakman explains what polymers are and mentions the various materials around us that are made of polymers. He explains that the materials are all different because of the way in which the monomers are linked together. Then they create a DIY slime with borax, which is a type of polymer.

Bianca Piper, a high school senior, tells her crush that she likes him, only to learn that he recently got back together with his girlfriend. When his girlfriend sees her, she threatens to release a video about her. Bianca stands up to her and gives her an empowering speech on self-image.