Changes
Carbon/Nitrogen Cycles
Water Cycle
Stresses on Ecosystems
Resources
100

The regular divisions of the year. 

What are seasons?

100

This is the gas plants take in.

What is carbon dioxide? 

100

The process of changing liquid water into a gas.

What is evaporation?

100

Any physical hazard to life on earth by having too much or too little of something.

What is stress?

100

This is the largest man made stress.

What is habitat destruction? 

200

These seasons depend on annual rainfall.

What are the rainy and dry seasons?

200

In this process plants use water, carbon dioxide from the air, and energy from the sun to form sugar molecules and oxygen. 

What is photosynthesis? 

200

This is when plants, animals, and humans release water vapor into the air.

What is transpiration? 

200

This causes nutrients from trees and plants to be recycled into the ground.

What is a forest fire? 

200

This is anything that makes the water, land, or air dirty.

What is pollution?

300

These seasons changed depending on temperature. 

What is winter, spring, fall and summer?

300

in this process plants use sugar molecules and oxygen to produce energy.

What is respiration? 

300

This is when water vapor turns back into a liquid.

What is condensation? 

300
This, while sometimes harmful, can also distribute fertile soil and seeds, allowing plants to grow in areas they may not have grown before.

What is a flood?

300

A species that is not native to a land and can be harmful is called this.

What is invasive? 

400

These winds change direction with the seasons and often control the wet and dry seasons.

What are Monsoons? 

400
In these two ways nitrogen as a gas is turned into a useable compound.

What is lightening and bacteria?

400

This is when water vapor collects in the air and falls to the earth as a liquid.

What is precipitation?

400

This disaster is different than others in that it does not have a definite beginning or ending.

What is a drought? 

400

Scientists consider a species to be this if its last known member dies off. 

What is extinct? 

500

These are two of the monsoon locations discussed in our book.

What is India and Southeast Asia?

500

These grow on plant roots and help change nitrogen gas into a useable compound.

What are root nodules?

500

This item is needed in the carbon, nitrogen, and water cycle.

What is water?

500

This is the gradual changes in populations of organisms in an ecosystem.

What is succession? 

500

This type of resource has a finite amount of resources. An example could be oil, gas, or coal. 

What is a non-renewable resource?