When you use an item again instead of throwing it away, you are doing this.
What is reusing?
100
This process occurs in the clouds when water vapor turns into a liquid.
What is condensation?
100
This is a garbage dumping site that will hopefully one day be a green space. A problem with this type of site is methane gas and possible polluting of ground water.
What is a landfill?
100
An inherited characteristic that helps an organism survive in its environment.
What is an adaptation?
200
The oceans are filled with these microscopic organisms that make their own food through photosynthesis.
What is phytoplankton?
200
This cycle move oxygen and carbon dioxide through the biosphere.
What is the oxygen and carbon dioxide cycle?
200
During this process, oxygen is used and carbon dioxide is given off.
What is respiration?
200
Examples of this are rain, snow, sleet and hail.
What is precipitation?
200
This is a model of an ecosystem or food chain that shows the number of organisms eaten at each level.
What is a food pyramid/pyramid of numbers.
300
This is the change from bare rock to forest. (2 words)
What is Primary Succession?
300
This is the process of regrowth after a forest fire.
What is secondary succession?
300
Scientists feel that this is happening to our atmosphere gradually over time.
What is global warming?
300
Plants do this process to make their own food out of carbon dioxide. It also creates oxygen for humans.
What is photosynthesis?
300
A symbiotic relationship where one organisms benefits and the other is harmed.
What is parasitism?
400
Plants halp move water through the water cycle by this process. We also remember it by "sweating".
What is transpiration?
400
This process moves water from the oceans into the atmosphere. It also makes puddles disappear.
What is evaporation?
400
These are fuels that originate from decomposed plants.
What are fossil fuels?
400
These types of gases, such as carbon dioxide or methane, contribute to global warming.
What are greenhouse gases?
400
The fifth level of biological organization (if you are going from smallest to largest.)
What is a biome?
500
These are the four main abiotic factors in an ecosystem.
What is sun, air, water and soil?
500
This is all of the water in the biosphere.
What is the hydrosphere?
500
A symbiotic relationship where both parties involved benefit from each other.
What is mutualism?
500
This is a group of animals of the same species in the same area at the same time.
What is a population?
500
These help control populations in the environment. They can have both positive and negati