1st Quarter Review

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

• data
• theory
• hypothesis
• fact

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

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, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

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

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 are the controlled variables?

• Type of plant, amount of music, and sunlight
• Water, apple juice, milk
• Plant growth

Tags

NGSS.MS-LS1-5

The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?

• Producers
• Consumers
• Decomposers
• Inorganic nutrients

Tags

NGSS.MS-LS2-3

NGSS.MS-ESS2-1

An organism that produces its own food supply from inorganic compounds is called a(an)

• heterotroph
• consumer
• detritivore
• autotroph

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers?

• food web
• an ecosystem
• food chain
• a population

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-6