FSA Nature of Science

Why should an experiment be repeated?

• to form a hypothesis

• to reduce the chance of error

• to change controls

• to identify the problem

Tags

NGSS.MS-ETS1-4

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

• scientific method

• recipe

• data collection

• metric system

Tags

NGSS.MS-PS1-2

Which statement is an observation?

• That house is empty because there are no lights on. 

• Her hair is brown. 

• Her hair is brown because she dyed it. 

• Her hair has not been cut in two years. 

Why did Carol use 5 seedlings instead of a single seedling in each group?

• To ensure that her investigation is a fair test.

• To increase the confidence that the results are not by chance.

• To show that any difference in the results is due to the colour of light.

Tags

NGSS.MS-LS1-5

The set-up is used to investigate whether sodium chloride solution can preserve peas.

Which of the following set-up should be included as the control in this investigation?

• 
• 
• 
• 

Tags

NGSS.MS-LS2-1

What is an DEPENDENT Variable, or DV?

• the ONE thing we change on purpose when designing an investigation

• the results of the change we made with our independent variable; what we MEASURE; can be quantitative and/or qualitative data
  

• these are the ways we change our independent variable

• these are the conditions that stay the same in order to have a “fair” investigation.

Tags

NGSS.MS-PS2-2

What is an INDEPENDENT Variable, or IV?

• the ONE thing we change on purpose when designing an investigation

• the results of the change we made with our independent variable; what we MEASURE; can be quantitative and/or qualitative data
  

• these are the ways we change our independent variable

• these are the conditions that stay the same in order to have a “fair” investigation.

Tags

NGSS.MS-PS2-2

Why is it important to have a control group in an experiment?

• To ensure the experiment is valid

• To increase the sample size

• To test multiple variables at once

• To make the experiment more complex

What is the primary purpose of peer review in scientific research?

• To increase the number of publications

• To ensure the research is original

• To validate the research methodology and findings

• To make the research more complex

Tags

NGSS.HS-LS3-2

Which of the following is a hypothesis?

• Plants need sunlight to grow.

• The plant is green.

• The plant is 10 cm tall.

• The plant is in a pot.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1