Working Scientifically

What is the name of the variable that you measure in an experiment?

• Independent Variable

• Control Variable

• Dependent Variable

• The volume of a liquid

Tags

NGSS.MS-PS2-2

What is an independent variable?

• What you measure in an experiment

• What you observe in an experiment

• What you keep the same in an experiment

• What you change in an experiment

Tags

NGSS.MS-PS2-2

How do you calculate the mean of a set of data?

• Multiply the values together

• Add the values together

• Add the values up and divide by how many pieces of data you have

• Add the values up and multiply by how many pieces of data you have

What is the definition of a hypothesis?

• A prediction using prior scientific knowledge

• What you change in an experiment

• The title of an investigation

• The average

Any factor that can change in an experiment

• variable
• constant
• independent
• dependent

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

Should experiments be repeated over and over to see if the results are the same each time?

• yes
• no

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-5

Observations use what?

• Graphs

• Your senses

• Scientists

• Predictions

Look at the graph.

From Tuesday to Wednesday there is ....

• no data

• an increase

• a decrease

• no change

1. What characteristic must be true of a good hypothesis?

• It must be correct.

• It must involve quantitative data.

• It must have been observed many times.

• It must be testable by observation or investigation.