These are the practice questions that we have created for this chapter. The form will grade itself, and show you any mistakes. These are different practice questions than you see in SI Review and in class!

Explore some properties of water with the Amoeba Sisters! It's all about those hydrogen bonds. Video has handout: http://www.amoebasisters.com/handouts

Terms discussed include adhesion, cohesion, surface tension, specific heat - all made possible by those amazing hydrogen bonds.

Hank teaches us why water is one of the most fascinating and important substances in the universe.

*** PLEASE WATCH WITH ANNOTATIONS ON! SOME INACCURACIES IN GRAPHICS ARE NOTED AND CORRECTED IN ANNOTATIONS. THANKS! *** In this edition of Crash Course Chemistry, Hank comes out for Team Polar, and describes why these molecules are so interesting to him. You'll learn that molecules need to have both charge asymmetry and geometric asymmetry to be polar, and that charge asymmetry is caused by a difference in electronegativities. You'll also learn how to notate a dipole moment (or charge separation) of a molecule, the physical mechanism behind like dissolves like, and why water is so dang good at fostering life on Earth.

In this episode, Hank goes over Reversible Reactions, the water dissociation constant, what pH and pOH actually mean, Acids, Bases, and Neutral Substances as well as the not-so-terrifying Logarithms, strong acids, weak acids, and how to calculate pH and pOH. Oh, and litmus paper!

Mr. Andersen discusses the disassociation of water and the properties of acids and bases. He also discriminates between strong and weak acids and bases.

Hank does his best to convince us that chemistry is not torture, but is instead the amazing and beautiful science of stuff. Chemistry can tell us how three tiny particles - the proton, neutron and electron - come together in trillions of combinations to form ... everything. In this inaugural episode

Why is RNA just as cool as DNA? Join the Amoeba Sisters as they compare and contrast RNA with DNA and learn why DNA should be sharing the limelight! Video has updated handout here https://www.amoebasisters.com/handouts and is updated from the old version of this video:

After a polypeptide is produced in protein synthesis, it's not necessarily a functional protein yet! Explore protein folding that occurs within levels of protein structure with the Amoeba Sisters! Primary, secondary, tertiary, and quaternary protein structure levels are briefly discussed.

This video, as stated in the description, focuses on general functions of biomolecules. The biomolecules: carbs, lipids, proteins, and nucleic acids, can all can have important functions in the body. However, this video is *not* giving human dietary guidelines and should *not* be used in any attempt to do so. *This is a video about the biomolecules. For your dietary needs, consult with a dietitian or medical doctor.*

Hank talks about the molecules that make up every living thing - carbohydrates, lipids, and proteins - and how we find them in our environment and in the food that we eat.