A ___________ is an educated guess about how things work.

The scientific method starts when you ask a ( or make a) ____________ about something that you observe

A ________ ___________ is a group of test subjects that are not getting treated. In the end they are compared to the treated subjects, to see what the differences are

______________ variables are the variables that are changed

A ______________ variable is what you measure in the experiment and what is affected during the experiment

An assumption made based on previous knowledge is a _____________?

Something that you actually see happening is a ___________?

Mrs. Harvey is wearing a floral shirt. Mrs. Larson says floral is Mrs. Harvey's favorite pattern. This is an example of what?

Mrs. Larson is not wearing glasses. This is an example of what?

Which of the following is the smallest unit of matter that cannot be broken down by chemical means?

Atoms consist of which of the following three particles?

Generally the stages of Scientific Method proceed in what order?

An atom becomes an ion when it does what?

Oppositely charged ions can make ________ bonds.

How many electrons does an element need to be considered stable?

__________ bonds form when different atoms combine and SHARE electrons.

A substance made up of only one kind of atom is a _____________.

Water stores __________ very effectively.

Attraction between substances of the same kind.

_____________ bonds hold water drops together through maintaining surface tension

Attraction between different substances.

Mixture in which one or more substances are equally distributed in another substance

What forms a hydrogen ion when dissolved in water?

What reduces the number of hydrogen ions when dissolved in water?

On the pH scale, acids are represented by what numbers?

On the pH scale, bases are represented by what numbers?

What number on the pH scale is considered neutral?

_________ is the atom most closely associated with life.

What are the 4 macromolecules needed to survive?

Which carbohydrate is a monosaccharide (Single sugar molecule)?

Which carbohydrate is a polysaccharide (many sugar molecules)?

Which is an example of a complex carbohydrate?

What is an example of a simple carbohydrate?

What is not soluble in water, but is soluble in oil and

include fats, phospholipids, steroids, and waxes?

What is solid at room temperature and made of mainly animal fats?

What exist as a liquid at room temperature and made of plant and fish oils?

____________ is composed of long chains of subunits called amino acids and serve a function as structural parts of the body and as enzymes.

How many amino acids do our bodies have that build our different proteins?

What are the two types of nucleic acids?

What stores energy from food being broken down?

Process that changes one set of chemicals into another set of chemicals.

Element or compound that enters into a chemical reaction

Element or compound produced by a chemical reaction

Energy is _____________ or ______________ whenever chemical bonds are formed or broken

Energy needed to get a reaction started

Substance that speeds up the rate of a chemical reaction

Protein that acts as a biological catalyst. Cells use this to speed up chemical reactions within the cell.

Enzymes are affected by pH and ____________________.

Chemical reactions always involve the _______________ of bonds in reactants and the ______________ of new bonds in products