Unit 1 : Scientific Process

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?

• Type of plant
• Water, apple juice, milk
• Plant growth
• Color of the plant's leaves

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Alexandra is testing the quality of her Nikon camera against the camera on her iPhone.  The different cameras is the __ variable.

• constant (same)
• dependent (measured)
• independent (changes)

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

• Dependent
• Independent
• Control
• Compound

Tags

NGSS.MS-ETS1-1

NGSS.MS-LS1-5

Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

Tags

NGSS.MS-PS1-2

NGSS.MS-PS3-1

What are all the things that are kept the same in an experiment?

• controls
• data
• constants
• independent variables

What is a factor that is measured for change in an experiment?

• control
• constant
• independent variable
• dependent variable

Tags

NGSS.MS-PS3-4

How much water does a plant need to grow?

Which are the constant variables?

• The type of plant

• How much water you use

• Location of plant

• How much the plant grows

• How long you grow the plant

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

 A comprehension test was given to students after they had studied textbook material either in silence or with the television turned on. What is the dependent variable?

• silence
• television turned on
• score on test
• textbook material

What can a scientist do to increase the reliability of an experiment?

• Write a conclusion
• Repeat the experiment multiple times
• Analyze data 
• Change the hypothesis 

Tags

NGSS.MS-PS2-5

What is an independent variable in a scientific experiment?

• the variable that changes

• the variable that doesn't change

• the variable that the scientist manipulates/changes

• the variable that the scientist measures/the data collected

Tags

NGSS.MS-PS2-2