Middle School Science

Leaching of soil nutrients is an example of

• Transformation of energy

• Transfer of energy

• Transfer of materials

• Transformation of materials

Tags

NGSS.MS-LS2-3

The second law of thermodynamics states that in any

• open system, entropy tends to increase spontaneously

• isolated system, entropy tends to decrease spontaneously

• closed system, entropy tends to decrease spontaneously

• isolated system, entropy tends to increase spontaneously

Tags

NGSS.HS-PS3-4

The population of carp in a small lake is estimated to be 7000 fish. Each year an average of 1000 die or are removed, and 3000 are recruited. What is the sustainable yield?

• 9000

• 5000

• 6000

• 2000

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which substances are needed to produce organic matter by photosynthesis?

• Carbon dioxide and water

• Oxygen and water

• Oxygen and carbon dioxide

• Sugars and carbon dioxide

Tags

NGSS.MS-LS1-6

Read the following sentences and answer TRUE or FALSE:

It is practically impossible to have isolated systems

• True

• False

Which EVS argues that the saving the environment cannot happen at the expense of the economy?

• Technocentric

• Both anthropocentric and technocentric

• Anthropocentric

• Ecocentric

Tags

NGSS.HS-ESS3-2

NGSS.HS-ETS1-3

Which of the following is NOT a characteristic that defines an ecocentric EVS.

• A less materialistic approach to life.

• Greater self-sufficiency of local communities.

• Discussion and debate leads to informed community agreements on environmental solutions.

• Educating the public on biorights of flora and fauna.

The earth and its atmosphere are considered

• a closed system because occaisionally meteorites hit our planet's surface.

• an open system because sunlight and heat cross its boundary

• a closed system as only sunlight and heat cross its boundary

• an open system because occaisionally meteorites hit our planet's surface.

An ecosystem that is being influenced by positive feedback is a system that is

• at static equilibrium

• stable

• at steady state

• unstable

Tags

NGSS.HS-LS4-5

Which energy source is unsustainable?

• Wind

• Solar

• Geothermal

• Fossil fuels

Tags

NGSS.HS-ESS3-3