Nature of Science

Justin blows his nose, but mucus seems to leak through the tissue.  He decides to test which tissue holds up the best while sneezing.  What is the independent variable?

• sneezing
• Justin
• amount of tissue
• type of tissue

Mr. McNeice wanted to know if different types of music affected people's heart rates, so he played different music and checked their pulses.  What is the dependent variable?

• type of music
• heart rate
• how long they listend to music
• Mr. McNeice

Which question can best be investigated by a scientist?

• Should I buy a red shirt or a green shirt?
• Does chocolate milk or plain milk taste better?
• Does a plant need sunlight to grow?
• Which feels softer, cat fur or dog fur?

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

The container is filled to the 350 mL mark with water. 

• observation
• inference
• problem
• hypothesis

Tags

NGSS.2-PS1-1

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

This is the outcome of the experiment. We get data and results from this.

• Independent Variable
• Dependent Variable
• Control
• Constant

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

• none
• one
• two
• three

Tags

NGSS.MS-PS2-2

Which is the dependent variable in Amelia's experiment?

• the number of bean plants in each group 
• the amount of water given daily to each plant 
• the height of each bean plant 
• the amount of fertilizer given to each group of bean plants

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The variable that is changed on purpose is: 

• Control
• Dependent
• Independent
• Outcome

Tags

NGSS.MS-PS2-2

The variable in the experiment that is the outcome that you measure is called:

• Control
• Dependent
• Independent
• Hypothesis

Tags

NGSS.MS-PS3-4