natural resources that can be replaced within a human lifetime.

natural resources limited in supply that are not easily replaced and could one day be depleted

nonrenewable resources formed by natural processes within the earth, burned for energy (coal, oil, & natural gas)

Protecting and using natural resources wisely to ensure we have enough for the future, include recycling, reusing and reducing.

to convert waste into reusable material.

To use again or more than once

To limit or use less in amount.

a place to dispose waste material by burying it and covering it over with soil.

to use up all of the resources

energy generated in ways that do not deplete natural resources or harm the environment, especially by avoiding the use of fossil fuels.

Also known as dirt and is made up of weathered rocks, minerals, and organic matter.

color, texture, ability to support the growth of plants, and capacity to retain water.

how soil feels and the size of the particles.

the easiest property to see, dark-colored soil has lots of humus

effort to protect soil from pollution and erosion.

small enclosed environment for growing plants and small land animals.

dark material that forms in soil when plants and animal material decays (organic matter).

to hold water.

light brown or tan color, doesn't clump, good drainage, limited water retention dries quickly, big particle size

gray or brown, feels smooth or powdery, it retains the right amount of water, and plants grow well in it.

red, brown or light gray, feels hard when dry, but sticky when wet, retains too much water and plants cannot grow in it.

the best soil for plants to grow in because is a combination of sand, silt, clay and humus.

the organisms that break the remains of dead organisms into smaller pieces and adds them back into the soil as nutrients