Rainforests at risk

Forests are important.Scientists think that about ten million types of wildlife live on Earth.The rainforests are home to nearly two-thirds of these wildlife.We should save forests because they are home to many animals and they also release so much water into the air that the affect the climates of the tropics.Plants' roots draw up water from the ground.Most of the water evaporates from the surface of the leaves and mixes with the air.This helps form rain clouds.

Save the rainforests!

Types of Forests

Temperate Forests
Temperate forests grow further away from the equator,where the climate is cooler.Temperate forests have distinct seasons.Many of the trees are conifer trees.

Tropical forests
Tropical forests grow near the equater.The climate is hot and rain falls almost every day.The leaves of the rainforest trees have leaves all year round.

Cloud forests
Cloud forests are rainforests that cover the mountains in tropical regions.They are up in the clouds and thus, are called cloud forests.Trees in cloud forests are shorter than those in the tropical forests and they are deciduous trees.

How to save water

1. Do not turn on the tap when brushing your teeth,use a mug instead.
   


2. Use a piece of cloth and a pail of water to wash the car instead of spraying water from a hose.
   


3. Water plants using water that is collected in a pail when it rains


4. Do not turn on the water when soaping

What is acid rain?

Acid rain is formed by pollution in the air.When factories and power stations burn fuels,they release waste gases into the air.When the gases mix with water in the air,the rain will be polluted,and when it falls back onto earth,it is called acid rain.Acid rain harms plants and causes lakes and rivers unsuitable for plants and animals to live.

The ozone layer

The ozone layer helps to protect the Earth from the some of the sun's ultra violet rays from getting through the atmosphere.There are some chemicals that causes the holes in the ozone layer.
Here are some of the chemicals:

• Chlorofluorocarbons which were used in refrigerators in the past
• Methyl bomide, a pesticide which by 2005,is no longer used in the United States

What are the benefits for reducing?

There are many benefits for reducing.Here are a few:

• Saves natural resources
• Reduces toxicity of waste
• Reduces costs

If you would like to find out more about these three benefits for reducing,try this website:

http://www.epa.gov/epawaste/conserve/rrr/reduce.htm

Recyling cans

Do you know what happens after you recycle a can?If not,read on!
After the cans are transported to the recycling centre,a machine will flatten the can into aluminum pieces.Next,the aluminum pieces are placed in an oven.The heat would remove the paint for your drinking can.Thirdly,the cans would be cleaned.Next,the aluminum pieces are placed into an extremely hot furnace.The aluminum will melt.The molten or melted aluminum will pe poured into molds and these molds are long,flat,empty containers.After it cools,it will take the shape of the containers(ingots).A machine will then smoothen and flatten the ingot.Lastly,the aluminum is thin and hard enough to be rolled up and called a coil.
After that last step,the coil would be able to be made into soda cans,pots,cars and pans!

Why do we recycle?

Recycling is a way of collecting and recycling materials.We should also reuse old papers or old containers.We need to cut down trees to make paper,but if we use the other side of the used paper,which is blank,we are recycling.

Earth Day

Enjoy this news taken from http://edition.cnn.com/2009/LIVING/studentnews/04/21/transcript.wed/index.html#cnnSTCVideo