1. Warm up #20
What are some advantages and disadvantages of land resources?

2. Lesson 3: Land Resources
Ch. 4 Energy Resources
Lesson 3: Land Resources

3. Essential questions Why is land considered a resource?
What are the advantages and disadvantages of using land as a resource?
How can individuals help manage land resources wisely?

4. What resources from the land do you use every day? activity
The land on which humans live is part of Earth’s crust. It provides resources that enable humans and other organisms to survive.
Make a list of every item you use in a 24-hr. period as you carry out your daily activities.
What items contain resources from the land?
Which items are renewable?
Which items are nonrenewable?

5. Land as a resource
Natural resource – something from Earth that living things use to meet their needs
Soil for growing crops
Forests to harvest wood
Mine minerals
Clear areas for roads and
buildings

6. Forests and agriculture
In 1650 forests covered much of the eastern US
By 1920 the forests nearly disappeared
Some trees have grown back but not as tall or as complex as they once were
Forests cut down for fuel, paper products, wood products, agriculture, and development

7. Mineral resources
Coal and other minerals to make products are called ores
Ores – deposits of
minerals that are large
enough to be mined
for a profit

8. Advantages and Disadvantages
Widely available and easy to access
Crops and trees are renewable
Disadvantages
Can take millions of years for minerals to form
Deforestation – the cutting of large areas of forests for human activities
Soil erosion, loss of animal habitats, affect global climates
Pollution – runoff from fertilizers and coal mines

9. Managing land resources
Preserved land – land that isn’t developed or logged or is minimal
Restoring land according to government regulations
Using organic farming techniques
Recycling products
Use yard waste and veggies to make compost