Scientific Method

Match the vocab word to the correct definition.

• Independent Variable

• Statement made about an object that uses numbers.

• Qualitative Observation

• The variable changed in the experiment

• Dependent Variable

• Statement made about an object that does use numbers.

• Inference

• The variable being measured

• Quantitative Observation

• An assumption made based on an observation

Reorder the following

• Analysis/Conclusion

• Question/Problem

• Observation

• Hypothesis

• Experiment

Tags

NGSS.MS-LS1-1

NGSS.MS-PS2-2

Organize these options into the right categories

Groups:

(a) Quantitative Observation

,

(b) Qualitative Observation

,

(c) Inference

• The bubble was 20 centimeters wide

• The footprints in the sand indicate someone walked by recently

• The fabric feels softer than expected

• Solution A has less bubbles than solution B.

• The empty plate implies the person finished their meal

• The temperature is 30 degrees Celsius

• The smoke coming from the chimney suggests a fire is burning

• The car has 4 wheels

• Object A is heavier than object B

• The book weighs 2 pounds

• The wet umbrella indicates it is raining outside

• The breaker has 5 mL of solution

• The tree is 10 feet tall

• The scattered papers on the desk suggest a busy workday

• The flower smells sweeter than the others

• The sky is bluer than yesterday

• The closed blinds hint that the room is unoccupied

• The music is louder than before

Which of the following is a hypothesis that has used the correct format?

• • If I water plants daily they will grow faster.

• • Adults can more accurately guess the temperature than children can. 

• • Butterflies prefer white flowers to orange ones.

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped

Research Question: Does the type of gasoline put in a car affect how fast the car can drive. I try regular, plus, and premium to see which one makes my car faster.

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-PS3-4

Walker is testing which fertilizer will grow the tallest grass.  The height of the grown grass is the __ variable.

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

Tags

NGSS.MS-LS2-1

Does the flavor of ice cream affect how fast the ice cream melts?

I scoop equal amounts of vanilla, chocolate, and Macinac Island Fudge flavors into three separate bowls.

Which variable is the part in red?

• independent

• dependent

Tags

NGSS.MS-PS3-4

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

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

• conclusion
• procedures
• materials
• responding variable