Planning and Carrying Out Investigations

Fill in the blank with the best option.

• how measurements will be recorded

• how many trials you will need to do

• units of measurement

• what tools are needed

• organized way to write down your data later

Fill in the blank with the best option.

• how measurements will be recorded

• how many trials you will need to do

• units of measurement

• what tools are needed

• organized way to write down your data later

Tags

NGSS.MS-PS2-2

Fill in the blank with the best option.

• how measurements will be recorded

• how many trials you will need to do

• units of measurement

• what tools are needed

• organized way to write down your data later

Tags

NGSS.MS-PS2-2

Fill in the blank with the best option.

• how measurements will be recorded

• how many trials you will need to do

• units of measurement

• what tools are needed

• organized way to write down your data later

A trial is...

• a test that controls all but one variable

• one in a number of repetitions in an experiment

• a factor that can be changed, controlled, or measured

• an answer to a scientific question

Tags

NGSS.MS-PS2-2

A dependent variable is...

• what the scientist changes at the beginning of each trial

• what the scientist measures at the end of each trial

• all the things that stay the same in every trial

• tools that are needed to conduct the experiment

The controlled variables are variables that the researcher_______

• keeps the same throughout the investigation

• changes every day

• doesn't need to worry about

• ignores

Tags

NGSS.MS-PS2-2

What will happen if you don't keep the controlled variables the same throughout the investigation?

• Your results will be meaningless.

• Your results will be even better.

• Nothing

What question does a scientific investigation answer?

• How many variables should you have?

• Which variable is best?

• How does the independent variable affect the dependent variable?

Tags

NGSS.MS-PS2-2

Which of the following best describes a hypothesis in a scientific investigation?

• A proposed explanation based on limited evidence as a starting point for further investigation

• A detailed report of the experimental results

• A summary of the data collected during the experiment

• A variable that is kept constant throughout the experiment