Scientific Investigations

All scientific investigations begin with what?

• A hypothesis

• An experiment

• An observation

• An analysis

Tags

NGSS.MS-LS1-1

What is the name of data that can be recorded in numbers?

• Qualitative data

• Quantitative data

• Descriptive data

• Observational data

What is the name of data that is descriptive rather than numerical?

• Quantitative data

• Numerical data

• Qualitative data

• Statistical data

How is it determined if a hypothesis is valid or invalid?

• By conducting an experiment

• By making an observation

• By forming a new hypothesis

• By writing a report

Tags

NGSS.MS-LS1-5

NGSS.MS-PS1-2

Give an example of quantitative data.

• The color of a flower

• The height of a plant in centimeters

• The smell of a fruit

• The taste of a vegetable

Tags

NGSS.MS-LS2-1

In a properly designed experiment, how many variables should be changed at a time?

• Two

• Three

• One

• Four

Compare and contrast scientific theory and scientific law.

• Both are guesses; theories are proven, laws are not

• Theories explain why; laws describe what

• Laws explain why; theories describe what

• Both are untested ideas

What is the purpose of having a control plant in an experiment?

• To increase the growth rate

• To compare results with the experimental group

• To reduce the cost of the experiment

• To ensure all plants receive fertilizer

Series of steps followed by scientists to answer questions.

• hypothesis

• experiment

• scientific method

• conclusion

What is the correct order of the steps involved in the scientific process?

• make an observation, form a hypothesis, conduct an experiment, analyze the data, evaluate results

• form a hypothesis, analyze data, make an observation, conduct an experiment, evaluate results

• form a hypothesis, make an observation, conduct an experiment, evaluate results, analyze data

• conduct an experiment, make an observation, form a hypothesis, analyze data, evaluate results