3.1 Science focus

Life on Earth depends on two processes:

the one way flow of energy from the ​ (a)   and the cycling of ​ (b)   through the Biosphere.

The life sustaining energy of nearly every ecosystem originates with ​​ (c)   , converted to ​ (d)   energy by plants and other producers.

Without the continual input of energy from the sun, nearly every ecosystem would quickly run out of the ​ (e)   needed for life.

• sun
• matter
• sunlight
• chemical
• energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Where does all energy for life begin with:

• Bacteria

• Sun

• Moon

• water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

As energy flows through ecosystems, it fuels the building up and breaking down of ​ (a)   compounds.

The resulting atoms, ions, and molecules form the planets living organisms and the ​ (b)   they need to survive.

The Earth does not get significant inputs of matter from ​ (c)   , so the fixed supply of ​ (d)   must be ​ (e)   to sustain generation after generation of organisms.

• chemical
• nutrients
• space
• recycled

Tags

NGSS.MS-LS2-3

What helps cycle the nutrients: Carbon, oxygen, nitrogen through the biosphere:

• Sun

• Moon

• Water

• Bacteria

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Any form of matter that an organism needs to survive is called a:

• Molecule

• Atom

• Nutrient

• Ion

Tags

NGSS.MS-LS2-1

Nutrients that organisms need in large amounts, such as:

Protein, carbohydrates, and fats are:

• Micronutrients

• Macronutrients

• Ions

• Molecules

Vitamins and Minerals that we need in very small amounts such as:

calcium, zinc, potassium, and iron are considered?

• Micronutrients

• Macronutrients

• Ions

• Molecules

Vitamins are considered " ​ (a)   " if they contain carbon and come from living things.

Minerals that do not contain carbon or do not come from living things are considered " ​ (b)   ".

• organic
• inorganic