El Origen del Universo

http://www.youtube.com/watch?v=R3-OcZF8-Fc

Ciclos de Vida de algunos seres vivos

El ciclo de vida de los organismos se refiere a la secuencia de los estados de desarrollo a través de los cuales pasan todos los seres vivos hasta llegar al estado adulto.
Mamíferos, reptiles, aves, anfibios, peces, insectos y otros invertebrados tienen cada uno su manera de reproducirse.
En el mundo animal existe una asombrosa variedad de ciclos de vida. Sorprendentemente, solo alrededor de un 3% de todas las especies animales nacen por crías vivas como parte de su ciclo de vida. La mayoría de los animales se reproducen por huevos.
Los animales necesitan alimentarse, crecer desarrollarse, y reproducirse. Todo esto es parte de su ciclo de vida. Así, también sus cuerpos se adaptan de diversas maneras para enfrentar los problemas de sobrevivencia.

Metamorfosis completas e incompletas

Ciclo de vida de la langosta

Ciclo de la araña

Ciclo de vida de la mosca y de la hormiga

Natural Resources 3rd Grade

I. What do we get from Nature?
II. Classifying natural Resources
III. Resources and production Activities
IV. Chile’s Wealth
V. A Map of Our Resources
Humankind consumes food of animal and vegetable origin.
We also obtain wool, leather and cotton, among other products, from animals and vegetables. Many of our clothes are made of these materials.
What products can we get from the living things in the photographs? Write one product for each case.

I. What do we get from Nature?

· Write the name of 5 elements that humankind gets from nature in order to live, for example, fruit and water

· How does humankind use these elements?
Humans must satisfy a number of needs in order to live. For example, we need to eat and to have shelter.
People satisfy most of their needs using natural resources. Any elements of nature that help us to satisfy a need is called natural resource.
The photographs on this page show two needs that people can satisfy with plants. What are those needs?

Fill in the following table using the example.
Natural Resource
We use it (for)………….. ………
Water
Vegetables
Animals
Cooper
Natural gas

II. Classifying Natural Resources

Some natural resources are not continually produced, for example, cooper, silver and gold. They are called non-renewable resources. Petroleum and coal are considered non-renewable resources too. This is because they would need a very long time to form again.
Other resources are renewable. They renew themselves; but if they are used without control they may disappear. Animals, plants and water are examples of renewable resources.

III. Resources and Production Activities

Do you know any production activities that obtain natural resources? Name them.
Find information about the following production activities: agriculture, mining, fishing, livestock farming, and forestry.
Some production activities that produce natural resources are agriculture, livestock farming, forestry, fishing and mining. These natural resources can be used directly, such as the fruit we eat or as , that is, material to make jams and preserves.

Metals are used to make coins, ornaments, and many others objects.
What activity deals with extracting metals from nature?
Soil is also a fundamental resource for the development of agriculture. People who work in this activity must not only pick fruit and vegetables, they also need to prepare the soil for the seeds, water the plant, look after them so that they grow and finally harvest the products. Fruits and vegetables will be used as food. However, the type of product that can be cultivated in a given place depends on the quality of soil, among other things.

IV. Chile’s Wealth

Several production activities take place in Chile. They are directly linked to the natural resources existing in each region.
For example, nitrate mining takes place in the northern regions of Chile, this is where this natural resources is found.
Where does mining mainly take place, in the north or south of Chile?
Where does forestry mainly take place? In the northern or southern regions of country?
Why are the activities in each region different?

Did you know…?

In Chile, there is industrial and traditional fishing. In industrial fishing, large amount of products are extracted. These products are sold then both in the country and abroad. Products such as oil and fishmeal are also obtained from this type of fishing. On the other hand, in traditional fishing, fewer products are extracted. They are also sold in small quantities and are used to feed a small groups of people.
Does the photograph show traditional or industrial fishing?

V. A map of our resources

With the information given about the main production activities in Chile.
a) On a cardboard, each student should draw a map of a region of Chile with a marker.
b) Invent a symbol for each resource existing in the region. Look at the examples in the table at the end of this fact sheet.
c) Draw the symbol inside your region map. Write the map symbol on one side of the card board.
d) Join the sheets if cardboard following the order of the regions in Chile .Exhibit the map of Chile and its resources at School.
Agriculture, livestock, forestry, mining and fishing are production activities that make the exploitation of Chile’s natural resources. All this activities must be planned. In that way, there is a sustainable exploitation of resources which contributes their conservation.
For example, it is not rational to cut down all trees in the forest If only adult trees are cut down, younger trees can grow and reproduce, contributing to the conservation of the forest. His is an example of sustainable exploitation.
1. What main resources are exploited in the in the region where you live?

1st and 2nd Grade Applied Sciences Class

Para comenzar a trabajar.....en orden retiran sus herramientas de trabajo

...y ahora despues de trabajar.....a jugar... con Miss Leslie!

Tambien tenemos tiempo para conversar

Miss Carolina, su alegria y su regalito

Miss Luisa Abeleida, Miss Claudia Bustamante y Miss Maria Luisa Offermann