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Adjacent water molecules are attracted and joined by ________ bonds.

Why is a water strider able to walk on the surface of water?

If the pH of an animal cell’s cytoplasm is approximately 7.2, the cytoplasm is:

What is the pH of a neutral solution?

When tea is made:  The water is the ________, the tea is the ________, and the tea you drink is the ___________.

Besides Hydrogen and Helium, the “magic” number of electrons in the outer shell is _________ to make the atom stable.

The number of which subatomic particle(s) designates the atomic mass numberof an element?

Cellulose (fiber) is an example of ________ found in plant cell walls.

What is an explanation of a set of related observations based on well-supported hypotheses from a number of different, independent forms of research over a long time period?

An atom’s ________ are found in energy levels around the nucleus.