Lesson on Nitrogen, Phosphorus and Water Cycle

SCIE 6 Nitrogen Cycle and Water cycle

by Maritess Jacinto

Nitrogen cycle

Multiple Choice

What is the percentage of the Nitrogen in the air ?

• 1%

• 21%

• 78%

Multiple Choice

How nitrogen is "fixed" into useable form for plants...

• Through action of bacteria only

• Through lightning only

• Through action of bacteria & lightning

Multiple Choice

The process in which nitrogen circulates and is recycled is called

• The nitrogen cycle

• The carbon cycle

• The water cycle

• The phosphorus cycle

Multiple Choice

What is the process of combining nitrogen gas with other elements to make nitrogen into usable compounds?

• nitrogen composition

• nitrogen fixation

• ammonia

• denitrification

Multiple Choice

Plants and animals cannot use nitrogen directly from the air.

• True

• False

Multiple Choice

Bacteria fix nitrogen from the atmosphere into a form plants can use.

• True

• False

Multiple Choice

What do free living bacteria in the soil do?

• Make clouds

• Turn atmospheric nitrogen into nitrates

• Make carbon dioxide for plants to go through photosynthesis

• Help plants take in water

Multiple Choice

True or False:

Bacteria create a form of nitrogen that ANIMALS can use directly

• True

• False

Multiple Select

True or False: Bacteria fix nitrogen from the atmosphere into a form plants can use

• True

• False

Multiple Choice

What would happen to the plants in this nitrogen cycle if all the bacteria died?

• They would not get the nitrogen they need.

• They would get their nitrogen directly from the atmosphere

Multiple Choice

True or False:

Bacteria release nitrogen from dead organisms into the soil.

• True

• False

Multiple Choice

all life forms can use the atmospheric nitrogen

• true

• false

Multiple Choice

What converts nitrogen gas into a usable form for plants and animals?

• bacteria

• rain

• fungi

• car exhaust

Multiple Choice

A correct path that nitrogen could take would be _____

• air -> animals->plants->bacteria

• air -> bacteria ->plants -> animals

Multiple Choice

all life forms can use the atmospheric nitrogen

• true

• false

Multiple Select

Choose the plants that are examples of legume?

• Strawberries

• Peas

• Beans

• Clover

Multiple Choice

Plants generally take up------ and -----and convert them into amino acids

• nitrites and nitrates

• lipids and proteins

• nitrogen and carbon dioxide

Multiple Choice

proteins and other complex compounds are subsequently consumed by--------

• plants

• bacteria

• animal

Multiple Choice

the nitrogen fixing bacteria found in the root nodules of legumes plants

• blue green algae

• lentils

• rhizobium

• bacteria

Multiple Choice

a diffrent type of -----converts the nitrates and nitrites into elemental nitrogen

• virus

• bacteria

• protozoa

Multiple Choice

the physical process by which nitrogen gets converted.

• rain

• lightning

• precipitation

• thunder

Multiple Choice

What is the role of the sun in the water cycle?

• provide heat energy for evaporation

• provide heat energy for condensation

• dry out the soil for runoff to occur

• provide thermal energy for accumulation

Multiple Choice

What process is shown by letter B in the diagram?

• condensation

• transpiration

• evaporation

• precipitation

Multiple Choice

During evaporation, water changes from a _________ to a __________.

• solid, liquid

• gas, liquid

• liquid, gas

• liquid, solid

Multiple Choice

due to which elements during lightning, nitrogen gets converted into oxides of nitrogen?

• low pressure & temperature

• high pressure & temperature

Multiple Choice

What process is show by letter A in the diagram?

• condensation

• evaporation

• accumulation

• precipitation

Multiple Choice

Water that falls to the ground from the clouds is ___.

• condensation

• evaporation

• precipitation

• transpiration

Multiple Choice

What is it called when plants release water vapor through their leaves?

• sublimation

• respiration

• transpiration

• precipitation

Multiple Choice

What is shown by letter D in the diagram?

• runoff

• groundwater

• melting

• vapor

Multiple Choice

Which of these is not an example of precipitation?

• rain
• clouds
• sleet
• snow

Multiple Choice

What is the process during which water cools and turns from a gas to a liquid?

• Condensation
• Runoff
• Precipitation
• Evaporation

Multiple Choice

True or False: Water is constantly being recycled because of the water cycle.

• True
• False

Multiple Choice

What is it called when water droplets form on the outside of a cool glass?

• Condensation

• Transpiration

• Precipitation

• Evaporation

Multiple Choice

What step of the water cycle is shown in this picture?

• Condensation

• Runoff

• Precipitation

• Evaporation

Multiple Choice

The water cycle is driven by ...

• wind and water

• people

• sun and gravity

• the moon

Multiple Choice

Which surface would have the most runoff from it after a rainstorm?

Multiple Choice

Snow, sleet, hail, and rain are all examples of  ________________. 

• evaporation
• condensation
• accumulation
• precipitation

Multiple Choice

Snow, sleet, hail, and rain are all examples of  ________________. 

• evaporation
• condensation
• accumulation
• precipitation

Multiple Choice

What is it called when plants give off water vapor as a waste product?

• condensation
• evaporation
• sublimation
• transpiration

Multiple Choice

When water _________, dew forms.

• Melts
• Evaporates
• Condenses
• Precipitates

Multiple Choice

What is B?

• Evaporation
• Condensation
• Precipitation
• Runoff

Multiple Choice

What is water that flows in rivers and streams into the oceans and lakes?

• evaporating
• condensing
• precipitating
• runoff

Multiple Choice

Which of the following causes all of the water on the planet to change its state (solid, liquid, gas) and move through the water cycle?

• amount of plant matter
• location of ice caps
• size of ocean
• temperature

Multiple Choice

Which is the opposite of condensation?

• Runoff

• Evaporation

Multiple Choice

What is the energy source for the water cycle?

• sun

• wind

• rain

• oceans

Multiple Choice

On Earth, what process generates most of the water vapor?

• Condensation

• Evaporation

• Precipitation

• Transpiration

Multiple Choice

What are formed when water vapor condenses?

• Clouds

• Mountains

• Transpiration

• Valleys

Multiple Choice

What part of the water cycle does this picture show?

• condensation
• precipitation
• evaporation