1. Using Natural Resources
Chapter 10

2. Living and nonliving things support life on Earth

3. Natural Resources
Natural resources – are supplies that nature provides.
They are both living and non living things
ALL living things depend on natural resources
We use plant and animal resources for food
Earth also gives us resources that we use to make the products we need
EVERYTHING we EAT, USE, OR BUY has been made from or is a natural resource

4. Energy Source Non- renewable Renewable water wind solar Wood
Fossil Fuels
Petroleum
Coal
Natural Gas

5. Renewable Resources
CAN be replaced

6. Energy the sun gives off
Solar Energy
Energy the sun gives off

8. Soil – A Renewable Resource
Soil covers MOST of Earth’s land surface
Many animals make their homes in soil
Trees and plants need soil to live
NON LIVING RESOURCES that EARTH RENEWS

9. How is Soil Renewed?
Weathering, Erosion, and Deposition work together to form soil
WEATHERING wears down
EROSION deposits the weathered material into new places

10. Ingredients in Soil Pieces of different weathered rock (IMPORTANT)
Decaying plants
Animal remains
Humus – decomposing material, dark brown
Air
Minerals
FULL OF LIFE!

11. Living Things in Soil Burrowing animals and organisms
They break down the plant and animal remains into nutrients the plants can use as food

12. Different soil are made from different kinds of rocks and minerals
The amount of humus changes the way it FEELS
Different minerals can change the color
Soil just inches apart can be made of different materials

13. Layers of Soil

14. CLAY Made of the smallest particles
Can be different colors because of the materials is it
Some feels sticky

15. SILT
Made of slightly larger particles
Feels smooth

16. SAND Made of the largest particles
Contains particles from different materials
Most common mineral – quartz
Broken shells
Color depends on the materials in it

17. Soil for Growing Plants
Good soil for plants is the right mix of clay, silt, sand, and humus
Without these materials plants can not soak up the nutrients

18. Soil a Renewable Resource
Good farming can replace the nutrients naturally
Farmers can plants that put the nutrients back in the soil
Soil itself takes longer to replace
Only a few CENTIMETERS of topsoil is renewed every 1,000 years

19. Other Uses for Soil Clay is used to make tile, bricks, and pottery
Clay is also used when making paper to make it strong and shiny
Sand is used to make concrete, glass, and other things

20. Other Uses for Soil Clay is used to make tile, bricks, and pottery
Clay is also used when making paper to make it strong and shiny
Sand is used to make concrete, glass, and other things

21. Renewable Energy Resources
Almost all of the energy we use is from the sun
We also use powerful forces of wind and moving water for energy
All are RENEWABLE

22. Solar Energy
Solar cell- changes the energy from the sun into electrical energy or heat energy
Groups of solar cells make solar panels
Can be used for many big jobs …power satellites
Solar heat – the sun heats water in the solar panels

24. Wind Energy Has been used for thousands of years
Windmills can be used to run machinery, pump water, and produce electric

26. Water Energy
Long ago, people built water wheels to use falling water to do work
Moving water has lots of energy
Today we use this energy to power machines that produce electricity
We store water in a dam that convert it to water energy

28. Energy Source Non- renewable Renewable water wind solar Wood
Fossil Fuels
Petroleum
Coal
Natural Gas

30. Nonrenewable Energy Resources
Nonrenewable resources – are supplies that exist in limited amounts are sued much faster than they can be replaced in nature
People use these resources to provide energy and make products

31. Ore
Ore – is a rock rich in minerals that can be removed from the Earth
Nonrenewable mineral resources are commonly found in ores

32. Fossil Fuels Fossil fuels – are burned to produce useful hear
Made from organisms that lived LONG AGO
COAL, NATURAL GAS, OIL
Petroleum – the real name for oil

33. How Fossil Fuels were made
Made from organisms (bacteria, algae…) that changed sunlight into energy
Their bodies stored the energy they didn’t use
After they died, their remains and the unused energy settled on the sea bed
Over millions of years they changed into oil and other fossil foils

35. Impact of Fossil Fuels
Mining (digging up) of fossil fuels is bad for the environment
Most oil is at the bottom of the ocean, which can be risky
There are chances of oil spills , which cause pollution and other serious problems

36. When they burn, they put chemicals into the air
Increases the amount of carbon dioxide in the air
Can cause acid rain that damages buildings and roads

37. How to make resources last longer
We are running out of our nonrenewable resources
If we keep using fossil fuels we will damage the environment
We conserve energy, be careful of how much we are using
Use renewable resources

38. Methods of Conservation
Conservation – means using only what you need as efficiently as possible
You can reduce energy in MANY WAYS!
Walk or ride bike
Turn off lights
Do not leave water taps running

39. Recycling
Recycling – saving, collecting, or using materials again instead of treating them as waste
Glass, cardboard, newspaper, paper, aluminum, tin, steel, and some plastics