Biology Bootcamp Scientific Method Quiz

The following statement is a hypothesis formed about marsh grass: 
If the amount of nitrogen marsh grass receives is increased, then the height of the grass will increase, because nitrogen is an essential nutrient needed for marsh grass to grow.
What is the independent variable of the statement above? 

• Height of grass
• Amount of nitrogen
• Essential nutrient
• Amount of growth

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Testing hypotheses often involves designing experiments. Which of the following is the factor that is observed and measured in an experiment?

• Control group

• Experimental group

• Dependent variable

• Independent variable

Tags

NGSS.MS-PS1-2

Dr. Smith reads two research papers that present different conclusions about the same question. He knows the researcher who wrote Paper A, but does not know the authors of Paper B. When asked which paper he thinks has more merit, Dr. Smith replies, “Paper A.”Because of Dr. Smith's connection to some of the researchers, he could be exhibiting

• bias

• inference

• observation

• skepticism

Camille notices that the leaves of her pothos plant are drooping this morning. The leaves were not droopy yesterday. She decides the plant needs to be watered. What had Camille just done?

• calculated the probability of the plant's ability to survive without water

• devised a controlled experiment about the effect of water on plant leaves

• formed a hypothesis based on quantitative data she has collected

• made an inference based on past experience and observation

What is the part of the experiment that is left alone or “natural", and is used to compare back to?

• Independent Variable
• Dependent Variable
• Control Group
• Experimental Group 

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

• the male alligators
• the incubator
• the gender of the alligator
• the temperature

Tags

NGSS.MS-LS1-5

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is

• the size of the baby alligators
• the gender of the baby alligators
• the incubator
• the temperature

Tags

NGSS.MS-LS1-5

In this graph, what is the independent variable? 

• Population
• Day
• Species 5

In this graph, what is the dependent variable? 

• Walla Walla Island
• Time
• Number of Deer

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?

• Type of plant
• Water, apple juice, milk
• Plant growth
• Color of the plant's leaves

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4