Scientific Method

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

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

• independent variable

• dependent variable

• control variable

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• Me

• How fast you get to school

• Riding a bike

• Walking

If I study for my scientific method quiz, then I will have a better test score. What is the dependent variable?

• Scientific Method

• Studying

• Independent variable

• Test score

The independent variable is

• The variable that you change in an investigation

• The variable that you measure in an investigation

• A variable that you keep the same in an investigation

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the independent variable?

• Dropping the same way

• Wing Length

• Amount of time it takes the helicopter to hit the floor

• Dropping from the same height

Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed two tomato plants in 10 inch pots with potting soil and watered them ¼ cup each day. One plant was placed under a cardboard box and one was placed in the sunlight. She measured the growth of the plant each week for three weeks.

What are two control variables? (Select 2)

• Using the same type of plant

• Each plant was placed in a 10 inch pot

• The growth of the plant

• One plant is in the sunlight and the other is under a box

What would the INDEPENDENT variable be in an experiment testing which  paper airplane design goes furthest?

• the paper used

• the paper airplane design

• the distance of each plane's flight

• how hard the plane is thrown

Which is NOT true of a control group?

• it gets the independent variable

• it's used to compare

• it gets the normal conditions

• it doesn't get the independent variable