SP Biology 1 & 2 Review

Science never changes

An atom whose outermost energy level is not filled will want to react with other atoms to fill the outermost shell.

It’s ok for scientists to have bias when experimenting

A theory is a

A solution with a pH of 10 is acidic.

Atomic number is the

Cohesion is the attraction between molecules of the same substance.

An ion is an atom that has

An isotope is an atom of an element that has a different number of

Enzymes are biological catalysts. They lower the activation energy of reactions so they can take place faster.

The number of protons of an element can change.

The process of maintaining constant internal conditions is called homeostasis.

Science is a way of knowing.

Water,s unique properties allow life to exist

Sodium chloride, common table salt is formed by a chemical reaction in which a __________bond is formed.

An atom that has its outmost energy filled will be

A solution that has a pH of 3 is acidic.

Valence electrons are the electrons in the

The three parts of an atom are

A solution with a pH of 7 is neutral.

A chemical reaction occurs when

The pH scale measure

A covalent bond forms when

What are some attitudes that help scientist answer questions about the natural world?

Process in which two cells from different parents unite to produce first cell of a new organism is asexual reproduction.

An organism made of only 1 cell is called

A stimulus is a change in the environment. Living things can

How many variable does a controlled experiment test?

Scientists generally use the metric system to record and measure data.

Reproduction is a characteristic of living things.

The number of neutrons of an element can change.

Adhesion is the attraction between molecules of different substances.

1 liter is equal to

An ionic bond forms