Summary #2 - animals and their enviroment

The ecosystem are divided in two that are biotic and abiotic. Biotic are living things and abotic are non-living things. The biotics are divided the protist, the animals , plants , fungi and bacteria. The abotics are divided in minerals, rocks , air , light , soil ,and  water . The virus are not considered biotics because they have to be in other organism to be alive.

Summary #1 Energy Resources

Energy resources is about ways of getting energy so we can generate electrical power.
Solar power. that's obvious, but the energy in coal originally came from the sun too.Prehistoric plants stored the sun's energy in their leaves, and when they died they eventually formed coals seams, the energy was still there.So when we burn coal (or any fossil fuel), we're releasing chemical energy that was stored  in plants millions of years ago.
The same goes for wind and wave power.Waves occur because of winds, and winds blow because the sun warms our atmosphere.Warm airs tends to rise, and winds are due to other air moving in to replace it.

Most power stations burn coal, oil or natural gas to run the generators.Others use uranium, or the flow of water. Electricity is sent around the country using high-voltage power lines. Nearly all of the power we use comes from large power sations, altough some places such as isolated farms, or hospitals, have their own diesel generators.

Vocabulary 16- Earth's Water Supply

desallination: getting fresh water fro seawater.

water cycle: the continious movement of water between Earth's surface and the air, hanging from liquid to gas to liquid.

groundwater: water that seeps into the ground into spaces between bits of rock and soil

water table: the top of the water-filled spaces in the ground.

aquifer: an underground of rock or soil filled with water.

spring: a place were groundwater seeps out of the ground.

well: a hole dug below the water table that water seeps into.

reservoir: a storage area for freshwater supplies.

Vocabulary 15- Earth's Atmosphere

renewable resource: a resource that can be replaced in a short period of time.

ozone layer: a layer of ozone gas in the atmosphere that screens out much of the sun's UV rays.

fossil fuel: a fuel formed from a decay of ancient forms of life.

smog: a mixture of smoke and fog.

acid rain: moisture that falls to Earth after being mixed with wastes fro burned fossil fuels.

vocabulary 14 - Earth's Rocks an Soil

rock: a naturally solid in the crust, made up of one ore more minerals.

igneous rock: a rock formed when melted rock materials cools and hardens.

sedimentary rock: a rock made of bits of matter joined together.

fossil: any remanins or printing of living things of the past.

methamorphic rock: a rock formed under heat and pressurefrom another kind of rock.

humus: decayed plant or animal material in soil.

pollution: adding any harmfull substances to earth's land, water, or air.

rock cycle: rocks changing from one form into another in a never-ending series of process.

Vocabulary 13 - Minerals of Earth's crust

Mineral: a solid material of Earth's crust with a definite composittion.

luster: the way ligth bounces off a mineral surface.

streak: the color of the powder left when a mineral is rubbed against a hard, rough surface.

hardness: how well a mineral resist scratching.

cleavage: the tendency of a mineral to break along flat surface.

ore: amineral containing useful substance.

gem: a mineral valued from being rare and beautiful.

nonrenewable resource: a resource that cannot be replace within a short period of time or at all.

vocabulary 10- matter and energy

Kinetic energy: the energy of a moving object.

potential energy: energy stored in an object or material.

conduction: movement of energy from a hot object that comes into contact with a coocler object; the materials remain in place.

radiation: movement of energy in the form of waves that can that can travel through empty space.

wet cell battery: a battery containing liquid solution that produces the electric current.


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dry cell battery: a battery that uses `` dry chemicals´´ to produce an electric current.