Parts of the Experiment

An experiment is conducted to test how different cleats change an athletes running speed.  Six different types of cleats are tested and the 100m run time is recorded.  What is the independent variable?

• The type of cleat
• The run time
• The 100 meters
• The athlete

A test is set up to test which brand of soda creates the biggest foam explosion when adding a Mentos candy.  Three different sodas were tested. They measured the height of the foam eruption.   What is the dependent variable?

• Brand of soda
• Number of mentos candies used
• Height of foam eruption
• Temperature of soda

Tags

NGSS.MS-PS1-2

Which of the following is a quantitative observation?

• The bird is very colorful.
• The bird has 4 different colors on him.
• The bird has many, many feathers.
• It is a bird. 

The yard is wet so it must have rained last night is an example of a (an)

• constant
• control
• inference
• quantitative data

Tags

NGSS.MS-ESS2-2

What step does every scientific experiment begin with?

• hypothesis

• investigation/observations

• experiment

• conclusion

Testing a hypothesis often involves a(n):

• answer
• experiment
• problem
• safety check

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-2

A series of steps used to provide more evidence to support or disapprove a hypothesis.

• scientific method

• recipe

• data collection

• metric system

Tags

NGSS.MS-LS2-4

Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted is a(n) example of what step.

• question

• experiment

• form a hypothesis

• analyze/conclusions

Tags

NGSS.MS-LS1-5

Johnathan’s data showed that household cockroaches moved away from raw cucumber slices is (a)n example of what step?

• question

• experiment

• form a hypothesis

• analysis/conclusions

Tags

NGSS.MS-LS2-1

Rene grew bacteria from the mouth on special plates in the laboratory. She placed drops of different types of mouthwash on bacteria on each plate is an example of what step?

• question

• experiment

• form a hypothesis

• analysis/conclusion

Tags

NGSS.MS-LS1-5