Scientific Investigation

The number of apples in this basket is ______________________ data?

• quantitative
• qualitative
• independent
• dependent

The dependent variable in this experiment is - 

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

Tags

CCSS.6.SP.B.5B

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

NGSS.MS-LS2-4

 Which of these is the best tool to use when measuring the water depth at the edge of a pond?

• F
• G
• H
• J

A biology class of 24 students decides to measure the height of each student and then calculate the average height for the class. Which of these is a possible source of error in this activity?

• The number of males and females in the class
• The difference in the ages of the students in the class
• The total number of students in the class
• The accuracy of making and recording measurements

Students use a dissolved oxygen probe during a laboratory activity involving 1,000mL samples of water. The function of the probe is to--

• create a model
• test a hypothesis
• gather data
• analyze investigation conditions

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

What is the tool you would use to measure the mass of an apple?

• Metric ruler
• Scale
• Graduated Cylinder
• Triple Beam Balance

Which of the following hypotheses is written correctly?

• Frozen tennis balls will not bounce as high.
• If I heat up a tennis ball it will bounce high.
• If I freeze a tennis ball, then it will not bounce as high.
• If a tennis ball is frozen, then it won't bounce as high as one that is not frozen.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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