1. Life Science Chapter 5 Section 5
Feeding The World
Life Science
Chapter 5
Section 5

2. Scientific Developments
In laboratories scientists are developing
Plants resistant to insects, disease and drought
Plant that produce more food per plant
Scientists in the field are developing
Farming practices that are more efficient
“High-tech” farming practices

3. Producing Better Plants
Major sources of food on the planet
Wheat
Corn
Rice
Potatoes
Genetic Engineering
Process scientists alter organism’s genetic material to produce plants with qualities that people find useful
Produce more food
Resistant to insects
Resistant to drought

4. Improving the Efficiency of Farms
Precision farming
Farmers use satellites to help guide tractors in planting and harvesting
Use images to help determine water and fertilizer needs
Computers analyze data to help farmers to make decisions
Benefits
Help save time and money
Help farmers maintain ideal conditions on fields
Benefits environment- correct amount of water and fertilizer used

5. Hydroponics
A method where plants are grown in solutions of nutrients instead of soil.
Nutrient rich water is pumped through gravel or sand
Costly method of growing food crops
Allows people to grow food in areas with poor soil