Scientific Investigation-Practice

Juan wanted to see if different tires would make his model car go faster.  Juan correctly set up an experiment to test 4 different brands of tires on his model car.  He recorded his data in the data table.
How many times did Juan conduct the experiment using Brand C tires?

• One
• Two
• Three
• Four

A student conducted an experiment on the dissolving rates of sugar in four different temperatures of water.  What is missing from the figure?

• Units of measurement for the water temperature.
• Units of measurement for the dissolving rates
• Units of measurement for the amount of sugar
• Units of measurement for the amount of water

Tags

NGSS.MS-PS3-4

A student conducted an experiment about the movement of a marble through four different liquid substances. Looking at the figure designed by the student, what is an error in his experiment?

• The amount of liquid substances used is not consistent.
• The type of liquid substances are not labeled correctly.
• The type of marble used is not consistent.
• The marbles are not dropped from the same distance.

For scientific data to be considered accurate and reliable, most science experiments should be

• Conducted as many times as possible
• Conducted 3 times
• Conducted only 1 time
• Repeated no more than 2 times

Tags

NGSS.MS-PS2-5

The dependent variable in this experiment is - 

• Number of Bacteria
• Time of Incubation
• Culture Number
• Type of Bacteria

Tags

CCSS.6.SP.B.5B

Elin is conducting a scientific investigation in which she measures a certain type of plant's growth in response to different amounts of fertilizer.  What is the independent variable?

• Amount of fertilizer
• Plant growth
• Type of plant
• Temperature of fertilizer

Tags

NGSS.MS-LS2-1

In an experiment the factor being tested or changed on purpose is called the -

• independent variable
• dependent variable
• constant
• experimental error

Heather thought of a problem and created a hypothesis, If I feed Grow Big fish food, then they will grow the largest in length. Which diagram correctly tests Heather's hypothesis?

• Option 1
• Option 2
• Option 3
• Option 4

What can you infer about the temperature for E.coli bacterial growth?

• E. coli does not grow well at low and high temperatures.
• E coli will continue to grow at very high temperatures.
• E.coli grows best at very low temperatures
• E.coli grows best at very high temperatures.

Tags

NGSS.MS-LS1-5

Factors in an experiment that must be kept the same are called - 

• constants
• variables
• experimental error
• hypothesis