Summary 8 Blood System

In this summary we will talk about the blood system.
There are different types of blood like the type A -type B -type AB -type O.
The red blood cell function is to transport oxygen and nutrients
The white blood cell fight desease.
The platelets stop bleeding, cover injures of bleeding.
The veins transport the blood to the heart. The arteries transport blood to all the body.
The function of the circulatory system is to transport nutrients and oxygen to all the body.

Summary 5 Surviving in ecosystem

In this summary will talk about limiting factor, adaptation, symbiosis, mutualism, paratism, commensalism.
Some of the limiting factor are nonliving like the sunlight, wind, and water. Anything that controls the growth or survival of a population is called a limiting factor.
Plants can survive in these conditions because they have developed special characteristic. Characteristic that help an organism survive in its environment are called adaptation.
In the nature a relation ship between two kinds  of organism that lastss over a period of time is called symbiosis. When a relationship between two kinds of organisms benefit both of them it is called mutualism.

Summary 6 Places to Live Around the World

In this summary we will talk about the biomes.There are 8 biomes.
The desert location: midlatitudes, climate: generally very hot days, cool night, less precipitation.
Soil:poor in animal and plant decay products but often rich in minerals.
Plants: none to cacti, yucas, bunch etc.
Animals: rodents, snakes, lizards, insects and other.
The tundra location: High northern latitudes.
Climate: very colod, harsh, and long winters short and cold.
Soil: Nutrient-poor,permafrost layer a few inches down

The Tundra, Grassland, Decidius forest, Taiga, and Tropical Rain Forest.

Summary 7 How Ecosystems Change

In this summary we will talk about of how the ecosystems change.
An example is the Farmland to forest. 
First an abandoned farm the first year 
a comunity of crabgrass, insects and mice,
invades the field were corn once grew.
The seccond and third year
Tall weeds such as asters, ragweed, and tall grasses grow among the crabgrass. It can easily survive in the shade cast. The rabbits and seed eating bird move in.
Four to Six Year Later
The hot, dry field of tall weeds provides a perfect environment. More birds join the community.
Twenty Five Years Later
A pine forest has replaced the old farm field. Larger animals like raccoons and foxes begin to visit.
one Hundred Years Later
The forest is now mostly decidius trees. These trees are habitats of many different kind of animals.
Examples of pioneer species are weed, birds, insects, plants

Summary 4 Cycles of life

In this topic we will learn three water cycles.
In the water cycle first occurrs the evaporation were the heat from the sun and is absorbed by the ocean, lakes etc. This heat makes the water evaporate. Next the condensation that is when the moist air rises higher and higher, it cools and it changes from vapor to tiny ice crystals. Then the precipitation when eventually the droplets or ice crystals become so longer and heavy that they can't stay in the air and they fall as precipitation rain, snow and others.
The worms, crickets, cockroaches, bacteria and fungi are the organism can break down dead wood.
In the carbon cycle the photosyntesis recive co2, the car exhaust carbon dioxide, the decaying matter give co2 like the animals and also recive oxygen.  The plants give oxygen.
In the nitrogen cycle begins with the decomposers, continue with the ammonia, nitrites, nitrates then the nitrites and ammonia in the roots of a three. Finally it go up to the air.
Many materials are recycle. one of the material mostly thrown in the garbage is the paper.
          

summary 3 Food Chains and Food Webs

The changes in a population can affect several other population in the same ecosystem. Every population needs energy in order to survive. 
A food chain shows one population that eats or is eaten by another population. A food web shows how one population can be part of more than one food chain. Both have producers that includes grasses, trees, and all the organisms uses Sun's energy to make their own food. In the ocean main producers are the algae. The organism that can't make their own food are called consumers. The consumers get energy from the food made by others oraganisms. Plants capture energy from the sunlight. When you eat a plant you capture some energy. The producers get enrgy from the Sun. Consumers get it from the food they eat.
An energy pyramid shows that less food and energy is available as you go from the base to the top of the pyramid.
People is affected by red tide. A person who eats poisoned shellfish can become very sick. The poisons produced by fire algae seem to onlyaffect the nervous systems of complex animals like fish, birds, and mammals
                                          Food Web

Summary 2 Living Things and Their environment

The environment is compose by many living and nonliving things. In an ecosystem all the living and nonliving things interact with each other. The nonliving parts of an ecosystem are called abiotic factors. Some examples of abiotic factors are the light, water, soil, temperature, air, and minerals. Also the living things part of an ecosystem are name biotic. Some examples of them are the plants, animals, fungi, protist, and bacteria.
Many kinds of animals and plants live in a prairie. A prairie is a region of tall grasses. It may be flat or hilly grassland. 
Birds like longspurs and horned larks, as 300 others kind of birds, still live in Blackland Prairie. Raaccoons, opossums, coyote, red bats, bobcats, mountain lions, gray wolves, and black bears live there too.
The place where an organism lives is called its habitat. A species niche includes many factors.
Most of the Blackland prairie has been changed into cropland.

Summary 1 Energy Resources

In this summary we will talk about the energy resources.
The people use the energy in many places in the homes,schools, and businesses. That places get heat by burning oil or natural gas. Energy in other homes and businesses come from electricity. Energy also run in common devices such as cumputers, tv's, radios, lights, flashlights, and washers. Some of the things burned to release energy are the coal, oil, and natural gases and others.
All the fuels have advantage and disadvantage. The advantage of using fossil fossil fuels is that they contain a lot of energy.
Fossil fuels are the remain of once living things. Natural gas and oil formed from the remains of tiny ocean plants and animals. There their bodies were buried by layers of sand and mud. Over millions of years, the plant and animal remains changed into oil natural gas.
Somes examples of alternative enrgy source are the modern waterwheels, harnessing the wind, and Earth´s furnance. Earth´s internal heat is called geothermal energy.
We can use solar energy for many things.

Vocabulary 2

opaque:completely blocking light from passing through.

transparent: letting all right throught,so than objects on the other side can be seen clearly.

translucent: letting only some light throught, so that objects on the other side appear blurry. 

polarization: allowing light vibrations to pass throught in only one direction.

refraction: the bending of light rays as they pass from one substance into another.

convex lens: a lens that curves outward (is thicker at the middle than at the edges) and brings-

concave lens: a lens that curves inward (is thicker at the edges than at the middle) and spreads light rays apart.

Vocabulary 16

desalination: getting fresh water from seawater.

water  cycle: the continuous movement of water between Earht´s surface and the air, changinng from liquid to gas to liquid.

ground water: 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 layer of rock or soil filled with water.

spring: a place where 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

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 the decay of ancient forms of life.

smog: a mixture of smoke and fog.

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

vocabulary 10

kinetic energy: the energy of a moving object.

potential energy: enrgy stored in a object or material.

conduction: movement of energy from a hot object that comes into contact with a cooler object; the material remains in place.

convection: movements of energy by the flow of matter from place to place.

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

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

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

Vocabulary 9

physical change: a change in size, shape, or state, without forming a new substance.

chemical change: a change in matter that produces a new substance wiht different properties from the original.

chemical reaction: a chemical change of  original substances  into one or more new substance.

reactant: one of the original substances beforce a chemical reaction takes place.

product: one of the new substances produced when a chemical reaction takes place.

vocabulary 8

mixture: two or more parts blended together yet keeping their own properties and not turning into a new substance.

solution: a mixture in wich substances are completely blended so that the properties are the same throughout and the substances stay blended so that the properties are the same throughout and the substances stay blended.

suspension: a mixture of substances that separate upon standing.

colloid: particles (or droplets) large enough to block out light spread throughout another substance.

emulsion: a liquid spread through another liquid.

aerosol: liquid drops of solid particles spread as a gas.

gel: a solid spread throuh a liquid.

foam: a gas spread through a liquid or solid.