1. Space, Catastrophic Events, Weathering, Erosion and Succession Test Review

2. Biotic
-describes a living or once living component of a community; for example organisms, such as plants and animals.

3. Abiotic
All non-living components of an ecosystem is called abiotic components for example water, light, temperature, and soil.

4. Microhabitat
the smallest part of the environment that supports live, such as a fallen log in a forest. A complete habitat just on a small scale.

5. Root Pry
physical weathering in which the growth of roots crack and displace rocks for example a tree growing in a rock.

6. Oxidation
The type of chemical weathering in which oxygen combines with an elements in a rock to change it into a new substance for example rust.

7. Pioneer Species
The first living things to start growing in an area where nothing is growing for example in Primary Succession it would be lichen and mosses, in secondary succession it would be weeds and grasses.

8. Weathering
The process of breaking down rock through physical or chemical agents.

9. Erosion
The process of moving rocks by wind, water, gravity or ice.

10. 4 Things a planet must have to support life
Oxygen - what we breath
Perfect distance from the sun. Not extreme temperatures or pressure
Water, essential for life
Atmosphere to protect from
radiation

11. 5 Agents of Mechanical/Physical Weathering
Abrasion - rubbing or scrapping
Freezing and Thawing of water in cracks of rocks
Root Pry busting the rocks apart as plants grow
Animal Action burrowing or walking on the rocks
Release of pressure causing flaking of rocks

12. Drought Little to no rain vegetation (plants) die
wind can remove dry topsoil

13. Hurricane Saltwater comes inland killing plants
flooding and storm surge can cause erosion of beaches
high winds can knock over trees

14. Flood Excessive rain can cause mudslides/landslides in hilly areas
Sudden downpours wash away topsoil and animal habitats

15. Tornado Extremely high winds cause erosion of soil
can remove trees, plants and soil
can carry (move) species to new locations

16. Wildfire
Often caused by lightening or people during periods of dry weather
Kills plants and loss of habitats to animals
Leads to secondary succession afterwards

17. Mechanical/physical
Chemical

19. shrubs and seedlings
Climax Community
Pioneer species like lichen and mosses
Bare Rock
Weeds
This is an example of Primary Succession because it starts with bare rock.

20. Water seeps into cracks in the rocks
Water freezes and expands cracking the rock further
Freezing and thawing happens over and over breaking the rocks into little pieces.

21. The tree begins as a little seed that starts to grow in a small crack of the rock. As the tree grows the roots grow bigger and expand the cracks more and more as the tree grows. Eventually the tree is so big that the rock splits apart.