1. AG-BAS-1 The student evaluates human needs and demonstrates the role of agriculture in meeting the needs of humans: historically, currently and in the future.

2. AG-BAS-1b Identifies major categories of food and fiber products.

3. Materials Developed from:
AgriScience, 4th ed. 2006
J. Lee and D. Turner
Pearson/Prentice Hall
Chapter 1: Human Needs and AgriScience, pgs 4-10

4. Food
Food provides nutrients that are necessary for organisms to live and grow

5. Food Humans use food for four purposes:
1. Energy for activity: carbohydrates and fats

6. Food Humans use food for four purposes:
2. Growth and repair : proteins

7. Food Humans use food for four purposes:
3. Good health: vitamins and minerals.

8. Food Humans use food for four purposes:
4. Body processes: nutrients and water

9. Food Sources
Almost all foods come from either plants or animals.

10. Food from Plants
There are 250,000 species of plants; only 600 species are eaten by humans.

11. Food from Plants
Wheat, rice, corn (cereal grains) are the major food items around the world.

12. Food from Animals
There are 2,000,000 species of animals, only 50 species are eaten much by humans.

13. Food from Animals Terrestrial animals live on the land.
4 types are raised in large numbers:
cattle, hogs, chickens, sheep.

14. Food from Animals Aquatic animals live in water.
Aquaculture is a new industry that is growing rapidly.

15. Fiber/Clothing
Fiber is produced in 3 ways: animals, plants, and manufacturing.

16. Fiber/Clothing – Animal Fibers
Examples:
Wool: from sheep (variations include: cashmere, alpaca, mohair, angora)

17. Fiber/Clothing – Animal Fibers
Examples:
Furs: from rabbit, mink, etc.

18. Fiber/Clothing – Animal Fibers
Examples:
Leather: from cattle, dear, etc.

19. Fiber/Clothing – Animal Fibers
Examples:
Silk: from cocoons of silkworms.

20. Fiber/Clothing – Plant Fibers
Examples:
Cotton: most important fiber

21. Fiber/Clothing – Plant Fibers
Examples:
Flax: stems of plants used to produce linen.

22. Fiber/Clothing – Plant Fibers
Examples:
Hemp, jute, sisal: coarse fibers from plants – used for rope, twine, cords.

23. Fiber/Clothing - Manufactured
Manufactured fabrics are also known as synthetic or man-made.

24. Fiber/Clothing - Manufactured
Examples:
Nylon, polyester, spandex, lycra, etc.: usually made with petroleum and other chemicals.

25. Shelter
Buildings used by humans for housing.

26. Shelter
Most products used for shelter are produced by forestry.

27. Shelter
Forestry is sometimes considered a type of fiber production because wood is composed of fibers.

28. Shelter
Examples of forest products:
Lumber

29. Shelter
Examples of forest products:
Plywood

30. Shelter
Examples of forest products:
Veneer

31. Shelter
Examples of forest products:
Composition board

32. Shelter
Examples of forest products:
Paper

33. Powerpoint by: Libby Lintel Kennesaw Mountain High School Kennesaw, GA 2008