1. What is a Biome?
Biomes are areas of the world defined by climate and geography
Often referred to as large ecosystems
What are some examples of biomes?
rain forest
desert
grassland
temperate deciduous forest
others?

2. Climate Climate is defined by 2 non-living factors
Annual average precipitation (rainfall)
Annual average temperature
Climate plays a major role in determining world biomes
Biomes can be represented on a graph
Rainfall on the X-axis
Temperature on Y-axis
This graph is called a Whittaker graph

3. Whittaker Graph Biomes of the World Annual Precipitation (inches)
Average Temperature 40 80
120
160
Biomes of the World
-10°C
(14°F)
0°C
(32°F)
10°C
(50°F)
20°C
(68°F)
tropical
temperate
 drier wetter 
 colder hotter 
30°C
(86°F)
Whittaker Graph
savannah
tropical dry forest
rainforest
desert
rainforest
temperate deciduous forest
grasslands
taiga
tundra

4. I give you an image and the climate… …you give me the biome
What Biome Am I?
I give you an image and the climate…
…you give me the biome

5. Desert
avg. precipitation: 5 in/yr
avg. temperature: 25 C

6. Tropical Rainforest avg. precipitation: 120 in/yr
avg. temperature: 25 C

7. Grassland
avg. precipitation: 20 in/yr
avg. temperature: 10 C

8. Temperate Rainforest avg. precipitation: 100 in/yr
avg. temperature: 15 C

9. Tundra
avg. precipitation: 5 in/yr
avg. temperature: -10 C

10. Temperate Deciduous Forest
avg. precipitation: 45 in/yr
avg. temperature: 10 C

11. Taiga
avg. precipitation: 40 in/yr
avg. temperature: 0 C

12. Desert
avg. precipitation: 8 in/yr
avg. temperature: 0 C

13. Savannah
avg. precipitation: 30 in/yr
avg. temperature: 25 C

14. Taiga
avg. precipitation: 50 in/yr
avg. temperature: 5 C

15. Tropical Deciduous Forest
avg. precipitation: 80 in/yr
avg. temperature: 25 C

16. Tundra
avg. precipitation: 10 in/yr
avg. temperature: -8 C

17. Ocean
avg. precipitation: 100 in/yr
avg. temperature: 20 C