# data[].attributes.attachment_link.readable_text
A natural resource is what people can use which comes from the natural environment. Examples of natural resources are air, water, wood, oil, wind energy, natural gas, iron, and coal.

The dividing line between natural resources and man-made resources is not clear-cut. Hydro-electric energy is not a natural resource because people use turbines to convert the energy from moving water. Petroleum and iron ores are natural, but need work to make them into usable refined oil and steel. Atomic energy comes from metallic nuclear fuels, like fissionable uranium and plutonium, but natural rocks need technical work to make them into these nuclear fuels.

We often say there are two sorts of natural resources: renewable resources and non-renewable resources.

A renewable resource is one which can be used again and again. For example, soil, sunlight and water are renewable resources. However, in some circumstances, even water is not renewable easily. Wood is a renewable resource, but it takes time to renew and in some places people use the land for something else. Soil, if it blows away, is not easy to renew.

A non-renewable resource is a resource that does not grow and come back, or a resource that would take a very long time to come back. For example, coal is a non-renewable resource. When we use coal, there is less coal afterward. The non-renewable resource can be used directly (for example, burning oil to cook), or we can find a renewable resource to use (for example, using wind energy to make electricity to cook).

Most natural resources are limited. This means they will eventually run out. A perpetual resource has a never-ending supply. Some examples of perpetual resources include solar energy, tidal energy, and wind energy. There may be a limit to how much can be taken in a given day or year, but that amount can be taken again next day or next year.

Some of the things influencing supply of resources include whether it is able to be recycled, and the availability of suitable substitutes for the material. Non-renewable resources cannot be recycled. For example, fossil fuels cannot be recycled.

The demand for resources can change with new technology, new needs, and new economics (e.g. changes in cost of the resources). Some material can go completely out of use, if people do not want it any more. Demand of many natural resources is very high, but availability of some, such as precious metals, is very low.

Availability

Different places have different natural resources. When people do not have a certain resource they need, they can either replace it with another resource, or trade with another country to get the resource. People have sometimes fought to have them (for example, spices, water, arable farmland, gold, or petroleum).

When people do not have some resources, their quality of life can get lower. So, people protect resources. When they can not get clean water, people may become ill; if there is not enough wood, trees will be cut and the forest will disappear over time ( deforestation); if there are not enough fish in a sea, people can die of starvation. Renewable resources include crops, wind, hydroelectric power, fish, and sunlight. Many people carefully save their natural resources so that others can use them in future.

Images for kids

The rainforest in Fatu-Hiva, in the Marquesas Islands, is an example of an undisturbed natural resource. Forest provides timber for humans, food, water and shelter for the flora and fauna tribes and animals. The nutrient cycle between organisms form food chains and foster a biodiversity of species.

The Carson Fall in Mount Kinabalu, Malaysia is an example of undisturbed natural resources. Waterfalls provide spring water for humans, animals and plants for survival and also habitat for marine organisms. The water current can be used to turn turbines for hydroelectric generation.

The ocean is an example of a natural resource. Ocean waves can be used to generate wave power, a renewable energy source. Ocean water is important for salt production, desalination, and providing habitat for deep-water fishes. There is biodiversity of marine species in the sea where nutrient cycles are common.

A picture of the Udachnaya pipe, an open-pit diamond mine in Siberia. An example of a non-renewable natural resource.

In Spanish: Recurso natural para niños

# data[].attributes.attachment_link.description
This video will introduce the geography, natural resources, climate, and industry of the northeast region.

# data[].attributes.headline
Video - Geography, Climate, and Natural Resources of the Northeast Region

# data[].attributes.subject
Video - Geography, Climate, and Natural Resources of the Northeast Region

# data[].attributes.attachment_link.description
This video will introduce the geography, natural resources, climate, and industry of the northeast region.

# data[].attributes.headline
Natural Resources Video - What are they?

# data[].attributes.subject
Natural Resources Video - What are they?

# data[].attributes.attachment_link.title
Natural Resources for Kids | Teach your kids and students about Earths Natural Resources

# data[].attributes.body
Watch until about minute 3:50.  You can watch more if you are interested.

# data[].attributes.attachment_link.description
Weather is a specific event-like a rainstorm or hot day-that happens over a few hours, days or weeks. Climate is the average weather conditions in a place over 30 years or more. NASA has observed that Earth's climate is getting warmer.

# data[].attributes.attachment_link.description
Kid's learn about the science of climate. How it differs from weather over a long period of time.

# data[].attributes.attachment_link.title
Weather vs. Climate: Crash Course Kids #28.1

# data[].attributes.headline
Textbook - Social Studies States and Regions

# data[].attributes.subject
Textbook - Social Studies States and Regions

# data[].attributes.attachment_link.readable_text
eHarcourtSchool.com has been retired and is no longer accessible. Because of the age of this application, the programs supported by this platform are not able to benefit from the technological improvements in accessibility, security, and HMTL5 (non-Flash) that we have incorporated into our newer programs and platforms in recent years.
Learn more about HMH's newest classroom solutions.
If you want to retrieve your user data from the platform that is no longer accessible, please contact techsupport@hmhco.com or 800.323.9239 and let us know that you're contacting us about user data extraction from eharcourtschool.com.

Please note, user data extraction does not include program content.

# data[].attributes.attachment_link.description
eHarcourtSchool.com has been retired and is no longer accessible. Because of the age of this application, the programs supported by this platform are not able to benefit from the technological improvements in accessibility, security, and HMTL5 (non-Flash) that we have incorporated into our newer programs and platforms in recent years.

# data[].attributes.body
Regions of the US Video