Biogeochemical Cycles Review Lesson

Multiple Choice

What is the definition for Biogeochemical Cycles?

• The process of photosynthesis and respiration in plants.

• A pathway for chemicals necessary for life to move through the environment. 

• The movement of energy through living organisms in an ecosystem.

• The study of the interactions between organisms and their environment.

Transpiration

When we are hot, we perspire. When plants are hot, they transpire.

Multiple Choice

Clouds start to form in the sky. Which of the following best explains this phenomenon?

• Condensation, water vapor cools into liquid water

• Condensation, liquid water cools and combine into clouds

• Evaporation, water vapor rises into the sky

• Evaporation, liquid water heats up into water vapor

Multiple Choice

As the clouds move away, it got darker and darker. Not long after, water droplets start to fall from it.

1. What do you call this process?

2. Why does the droplets fall?

• 1. Melting. The water molecules are losing energy and therefore, falls from the atmosphere.

• 1. Precipitation

  2. The water droplets are too heavy to float as clouds so they fall.

• 1. Precipitation.

  2. All droplets fall back to Earth.

As water reaches the ground...

runoff: water flows on the surface of the lithosphere

infiltration: water flows vertically from above ground to subsurface, a major source of groundwater

seepage: slow horizontal movement of water across soil or building material

Multiple Choice

Shortly after the rain falls down onto the mountains,

1. what will most likely happens?

2. what becomes of the water?

• 1. The water start to infiltrate into the ground.

  2. Groundwater

• 1. The water runoff into the ground.

  2. Groundwater

• 1. The water seep into the plants.

  2. Plant roots

• 1. The liquid evaporate into gas or water vapor.

  2. Clouds

Water

The hydrosphere is made of freshwater or varying concentration of saltwater.

Multiple Choice

Temperature starts to increase as summer approaches. You see the snow getting lesser on the mountain. Yet, there is no water pooling on the ground. What process is happening to the snow?

• condensation, water molecules are getting closer, making the snow looks less

• infiltration, water molecules in the snow entering the soil

• sublimation, water molecules in the solid snow rise up into the atmosphere as vapor

• evaporation, water molecules molecules in the liquid snow rise up into the atmosphere as vapor

Multiple Choice

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

• Water
• Atmosphere
• Sun
• Air

Labelling

Label the organisms that are part of the Nitrogen Cycle!

Drag labels to their correct position on the image

Nitrifying Bacteria

Nitrifying Bacteria

Denitrifying Bacteria

Nitrogen-Fixing Bacteria

Decomposers

Multiple Choice

This is NOT a part of the phosphorus cycle.

• Phosphate is incorporated into sedimentary rocks

• Phosphate bound to soil

• Atmospheric phosphate

• Phosphate is absorbed from the soil by plants

Multiple Choice

_____ brings phosphorous into our waterways. .

• Precipitation

• Runoff

• Transpiration

• Condensation

Multiple Choice

What role do decomposers play in the phosphorous cycle?

• absorb phosphorous 
• release phosphorous into atmosphere
• return phosphorous into the soil
• combustion

Multiple Choice

Too much phosphorus in waterways (rivers, lakes) can lead to___________.

• eutrophication/red tide

• nothing

• decreased pH levels

• diseases

Multiple Choice

Organisms that break down dead plants & animals and release nitrogen back into atmosphere...

• bacteria

• plants

• animals

• producers

Multiple Choice

Photosynthesis

• absorbs CO₂
• releases CO₂

Multiple Choice

Nitrogen is needed in living things because:

• It is found in carbohydrates which give energy to organisms

• It is found in glucose which is a main food source

• It is found in proteins and nucleic acids, both important macromolecules

• It is found in lipids and cell membranes.

Match

Match the following description to the name of the process.

• condensation

• evaporation

• precipitation

• transpiration

cool off water vapor to form clouds

heat from sun turns water to water vapor

water falls as rain, snow, sleet

evaporation of water from plants

• cool off water vapor to form clouds

• heat from sun turns water to water vapor

• water falls as rain, snow, sleet

• evaporation of water from plants

Multiple Select

All of the following release carbon dioxide into the air except:

• respiration of humans and animals

• decomposition of organisms

• burning of fossil fuels

• Photosynthesis

Multiple Choice

How nitrogen is "fixed" into useable form for plants

• through action of bacteria
• through lightning
• through action of bacteria & lightning
• through photosynthesis