4 Characteristics of a desert Dry (less than 25cm of precipitation a year)Extreme temperaturesMineral richSand, rocks, barrenRain comes in the form of sudden thunderstorms, flash floods
5 Desert classifications 1) Hot Desert- HOT most of the year. Ex. Sahara, Gobi, Sonoran2) Cold Desert- COOLER temps but generally still receive little precipitation throughout the year. Ex. Sierras, Rocky Mts.
6 Desert Limiting Factors 1) Lack of Water (dry)2) Extreme temperature ranges
7 Desert adaptations Spines on cactus Roots (deep to get to water) Roots (shallow and fanned out)Scales/Shells (reduce water loss)Burrowing organismsNocturnalBig earsSmall leaves
8 Make a cactus! Label arm 1(animals) Label arm 2 (plants) Label arm 3- center of cactus (general info- examples, adaptations, interesting facts)