Carbon Cycle
Nitrogen Cycle
Phosphorus Cycle
Water Cycle
Random Unit 1 Questions
Chemical Formulas
100

This is a process in the carbon cycle that absorbs carbon dioxide from the atmosphere.

What is photosynthesis?
100

This is the form of nitrogen that is unusable for plants.

What is nitrogen gas?

100

This is the process that breaks down rock releasing phosphates.

What is weathering?

100

Rain, hail, and sleet are forms of ________ in the water cycle.

What is precipitation?

100

In an experiment, these are variables that are not changed in the experiment.

What is the control or constant variable?

100

This is the chemical formula for carbon dioxide.

What is CO2?

200

These are all the different types of organisms (3) that go through cellular respiration.

What are plants, animals, and bacteria?

200

This is the process that converts nitrogen gas into ammonium/ammonia.

What is nitrogen fixation?

200

This is the form (a compound) that phosphorus is most commonly found in the phosphorus cycle.

What is phosphates?

200

This is the process where water flows through the soil underground.

What is percolation?

200

This is an organism that is a decomposer.

What is fungi, bacteria, and some worms or insects?
200

This is the atomic symbol (letter) for Phosphorus.

What is P?

300

This process takes dead organic matter such as plants and algae and over millions of years forms coal and oil.

What is fossil fuel formation?

300

This is the process that converts nitrates back to nitrogen gas.

What is denitrification?

300

This is the process where phosphates found in soil underground can go into bodies of water.

What is leaching?

300

This is the process in the water cycle where water from plants evaporate into the atmosphere.

What is transpiration?

300

Based on ecological levels of organization, multiple individuals of the same species make up this.

What is a population?

300

This is the chemical formula for water.

What is H2O?

400

These are processes (list 2) that contribute to the addition of carbon dioxide to the atmosphere.

What are combustion and respiration?

400

This is the process that converts ammonium/ammonia into nitrates.

What is nitrification?

400

This is the gradual process where mountains can form from sedimentary rock at the bottom of the ocean.

What is geological uplift?

400

This is the process in the water cycle that leads to the formation of clouds.

What is condensation?

400

This biome is also known as coniferous forest or boreal forest.

What is taiga?

400

This is the atomic symbol for nitrogen.

What is N?

500

This process is primarily anthropogenic (comes from human-driven activity) that is a major source of carbon dioxide emissions.

What is combustion or burning of fossil fuels?

500

This is the process in the nitrogen cycle where plants absorb nitrates.

What is assimilation?

500

This primarily anthropogenic (comes from human-driven activity) process leads to excess phosphates going into bodies of water.

What is fertilizer runoff? 

500

This is where groundwater (water underground) is stored.

What is an aquifer?

500

This the type of graph that is used to show the relationship between two quantitative (numerical values) variables on the X and Y axes.

What is a scatter plot?

500

This is the chemical formula for ammonia. 

What is NH3?