Nature of Science Chapter 1 Review

Which statement about opinions is true?

• They are beliefs or value judgements
• They are a valuable tool used by scientists
• They are supported by research
• They can be used to help write a hypothesis

Which statement about a hypothesis is NOT true?

• A hypothesis is an explanation of what you think will happen.
• A hypothesis can be tested
• A hypothesis is written as a question
• A hypothesis may be a true statement.

A scientific conclusion is based on 

• variables and experiments
• observations and questions
• facts and observations
• tools and evidence

A valid scientific investigation must be able to be

• replicated

• graphed

• predicted

• observed

For a scientific conclusion to be valid, what must it be based on?

• opinions
• facts
• descriptions
• questions

A scientist using scientific methods would NOT

• ask a question
• form an opinion
• record data
• perform repeated trials

How many variables should be tested at one time in a scientific investigation?

• none
• one
• two
• three

What is another word for hypothesis?

• evidence
• graph
• investigation
• prediction

Science focuses on the study of things that _______.

• occur in stories
• are personal opinions
• occur in nature
• all of these

Nick wants to know which of his pet dogs can run the fastest.
What is the best way for him to figure this out?

• He should measure the length of his dogs' legs.
• He should ask his little sister to guess which dog is the fastest.
• He should do an experiment and time his pet dogs running.
• He should observe his pet dogs while they are sleeping.