ESS SEMESTER 1 REVIEW: NOS

What might cause a theory to change over time?

• New laws passed by the government
• New but untestable ideas
• Changes in public opinion
• The discovery of new evidence

What is a qualitativeobservation?

• Using your 5 senses

• Using dice

• A store

• A place

What is a quantitative observation?

• Using numbers and measurements

• A cookie

• A plane

• A fictional story

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

• none
• one
• two
• three

Tags

NGSS.HS-LS1-3

The status of a hypothesis can be

• correct or incorrect.
• proven or disproven.
• supported or not supported.
• right or wrong.

There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

To control variables means to

• measure properly
• repeat the experiment
• change one thing at a time
• test things out for yourself

How are theory and hypothesis alike?

• Both are completed by experts.
• Neither of them can be revised.
• They attempt to explain natural phenomenon.
• They both describe an event in nature.

A statement that can be tested is a ..

• variable
• hypothesis
• conclusion
• observation

What is a statement called using the words "If...then...because" ?

• variable

• opinion

• conclusion

• hypothesis