Scientific Method

What is the dependent variable?

The amount of donuts to order and the number of students in the class.

• The amount of donuts to order

• The number of students in the class

Labiba is having the carpet in her room cleaned. It costs $1 to clean each square foot of carpet. The cost of the cleaning is based on the area of the carpet.

Identify the independent variable and the dependent variable.

• Independent: Area of the floor

  Dependent: Cost of cleaning

• Independent: Cost of cleaning

  Dependent: Area of the floor

The summary at the end of an experiment that explains the results is... 

• conclusion
• procedures
• materials
• responding variable

A testable prediction about a scientific investigation is a(n)

• Question
• Observation
• Hypothesis
• Experiment

Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted.

• recognize a problem
• test the hypothesis with an experiment
• form a hypothesis
• draw conclusions  

Tags

NGSS.MS-LS1-5

Information you obtain through your senses, such as touch, sound and sight.

• observation
• hypothesis
• question
• conclusion

Tags

NGSS.MS-LS1-8

A prediction or guess based on observations.

• data
• scientific process
• hypothesis
• question

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-PS3-5

The things that are kept the same to ensure the results are due to the experiment is called..

• Control

• Dependent Variable

• Independent Variable

• The Scientist

Tags

NGSS.MS-PS2-2

Research question: does the distance a person kicks a soccer ball effect how well they will do on their math test.  What is the dependent variable?

• How far they kick the soccer ball
• who the person is
• how well they do on the math test
• Type of soccer ball.