Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is...
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Transcript of Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is...
![Page 1: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/1.jpg)
Deserts
Cathy O’BrienPeriod 2
Ms. O’Brien
![Page 2: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/2.jpg)
What is a Desert?
• Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches!
• Deserts can be hot or cold.
![Page 3: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/3.jpg)
Where are Deserts?
• Deserts cover about one fifth of Earth's surface.
• Deserts make up a part of every continent except Europe.
![Page 4: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/4.jpg)
Different Types of Deserts
• Hot and Dry
• Semiarid
• Coastal
• Cold
![Page 5: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/5.jpg)
Types of Vegetation in a Desert
• Plants are mainly ground-hugging shrubs and short woody trees.
• Yuccas, cactus, sage bush, agave
![Page 6: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/6.jpg)
Special Adaptations of Vegetation• Leaves are replete
• Plants grow far apart
• Plant roots are near the surface of Earth
• Spiny nature of plants provides protection
• Plant’s spiny nature allows for less transpiration
• Leaves are silvery or glossy to reflect light
• Thick and fleshy leaves and stems
![Page 7: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/7.jpg)
Types of Animals in a Desert
• Small nocturnal (active at night) carnivores.
• Dominant animals are burrowers and kangaroo rats.
• There are also insects, arachnids, reptiles and birds.
©007www.inchinapinch.com/hab_pgs/terres/desert/ans.ht
![Page 8: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/8.jpg)
Animal Adaptations to the Desert
• Nocturnal
• Burrowers
• Life Cycles
• Dormant Eggs
![Page 9: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/9.jpg)
Human Impact on Deserts
• Recreational Playgrounds
• Land Development
• Grazing
• Military Grazing
![Page 10: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/10.jpg)
Fun Facts• Deserts are a land of temperature extremes.
• Tarantula Hawks, which is an impressive enormous insect that lives in the desert, hunt tarantula spiders.
• Camels, a common desert animal, can drink 30 gallons of water in 10 minutes.
• Deserts are taking over the Earth through a process called desertification.
©2007www.californiagardens.com
Tarantula_Hawk.jpg
©2007www.inchinapinch.com/hab_pgs/terres/desert/animals.htm
![Page 11: Deserts Cathy O’Brien Period 2 Ms. O’Brien. What is a Desert? Deserts occur where rainfall is less than 25 cm/year, that is only 10 inches! Deserts can.](https://reader036.fdocuments.us/reader036/viewer/2022082908/5a4d1b0e7f8b9ab05998d322/html5/thumbnails/11.jpg)
Work Cited• http://www.blueplanetbiomes.org/world_biomes.htm
• http://www.ucmp.berkeley.edu/exhibits/biomes/index.php
• http://library.thinkquest.org/11922/habitats/habitats.htm
• http://ths.sps.lane.edu/biomes/index1.html
• http://oncampus.richmond.edu/academics/education/projects/webunits/biomes/dclimate.html
• http://www.inchinapinch.com/hab_pgs/terres/desert/animals.htm
• http://library.thinkquest.org/11353/facts.htm