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Published byIndra Ivan Salim Modified over 6 years ago
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Pre-test How many soil characteristics are there? Name them all.
Tell me 2 things about each. TEACHER NOTES below Materials per student: sheet of copy paper, scissors, ruler, colored pencils (optional) Super-simple teacher notes: Have students do everything shown on the screen! Notes: The purpose of the pre-test questions is to get students to realize what they don’t know. Later in the ppt, when their graphic organizer is complete, the same 3 questions will reappear, and then they can directly compare what they now know compared to 30 minutes ago. Change any text you like What’s inside each of my 5 doors: Texture: soil is classified as sand, silt, or clay; sand has the largest particles, silt is smaller, and clay particles are smallest Color: soil color is determined by the minerals and organic matter that make it up; it can be black, brown, red, yellow, or even white; color also indicates things like moisture and acidity Chemistry: a measure of how acidic or basic the soil is; soil pH is determined by minerals, organic matter, and sediment; farmers can change the pH of their soil to suit their plants needs Pore Space: this is the space in between the soil particles; these spaces get filled with water and air; about half of soil by volume is pore space Soil Fertility: this is how well the soil can support the growth of plants; major factors- topography, nutrients and organic materials, and climate; lots of these mean a high fertility and good plant growth
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5 Characteristics of Soil
(cut every 5 ½ cm)
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5 Characteristics of Soil
Soil Fertility Pore Space Color Texture Chemistry
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5 Characteristics of Soil
-Soil is classified as sand, silt, or clay. -Sand has the largest particles, silt is smaller, and clay particles are smallest. -(Fact 3) Soil Fertility Pore Space Color Chemistry
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5 Characteristics of Soil
Soil Fertility Pore Space Color Texture Chemistry
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5 Characteristics of Soil
-soil color is determined by the minerals and organic matter that make it up. (another fact) Soil Fertility Pore Space Texture Chemistry 14 pH acid base You finish the rest: Simple drawing on cover 3 facts inside
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5 Characteristics of Soil
Soil Fertility Pore Space Color Texture Chemistry 14 pH acid base Add color!
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Post-test How many soil characteristics are there? Name them all.
Tell me 2 things about each.
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