They are proposed at the beginning of the scientific process

They are tested by experimentation

They are rejected due to growing evidence

They become accepted scientific knowledge

A wasted effort

An exception

An opportunity to investigate further

The goal of the scientific process

The process can go in unexpected directions

Questions have more than one answer

Experiments never end

Scientists publish findings without peer review

Problems you expect to identify

Question you expect to ask

Experiments you expect to run

Evidence you expect to find

Have more than one author

Prove their hypotheses

Have been checked by other scientists

Are published frequently

A hypothesis

A theory

An opinion

A prediction