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Unit 4 Lesson 1 Interesting Fact

Hi,boys and girls, do you know that all raw meat, poultry and shellfish are contaminated with bacteria some of which may cause food poisoning; therefore these foods require careful handling and proper cooking to guarantee their safety. Temperature control is the key to safe handling. Shellfish should never be allowed to stand at room temperature for more than two hours. Bacteria that cause food spoilage or illness, or both, multiply rapidly at room temperature. Refrigerator temperatures of 40° F or less significantly slow the growth of spoilage bacteria and stop the growth of food poisoning bacteria.

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Unit 4 Lesson 2 Enrichment Activity

Enrichment Activity
Hi, boys and girls, today I want share to all of you how to make salted egg.
We know that salting is an age-old way of preserving food and salted egg is a simple Asian recipe. It's typically eaten as an appetizer; however, it complements main dishes well. The original Asian recipe calls for duck eggs, which you can find at most Asian grocery stores. Duck eggs are large and have a creamier texture than chicken eggs, but chicken eggs will suffice if duck eggs are not available.

Things You'll Need

12 large eggs, table salt, water and large jar with lid

Instruction
1.Place 12 uncooked eggs into a large jar. Carefully  
  place the eggs on top of one another to avoid
  cracking.
2.Combine 1 cup of salt and 6 cups of water. Stir  
   the mixture until the salt dissolves.
3.Pour the saltwater inside the jar and seal it tight.
   Let the jar sit at room temperature for 30 days.
4.Take the eggs out of the jar and boil them.
   Refrigerate the eggs after boiling and consume
   them whenever you want.
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You can get more extra information about the fun experiment of the egg in the following sites.

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Unit 1 Lesson 3 Interesting Fact


Interesting Fact
Boys and girls, do you know orang utan also called Pongo Pygmaeus?


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You can get more information about orang utan on this website.

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Unit 5 Lesson 1 Interesting Fact

Interesting Fact
Boys and girls, do you know what is recycling? Recycling means that the piece of paper will be made into new paper. Paper recycling helps the Earth and makes the world a better place to live in. By paper recycling, you will save trees.
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These sites will tell you how to make paper at home!

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Unit 7 Lesson 1 Historical Trail




Historical Trail
A Greek scientist named Archimedes, invented the first pulley system in 260 B.C. . The pulley system enabled a single man to drag a ship.
 
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You can get more information about simple machines and extra information in the following sites.

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Unit 6 Lesson 1 Interesting Fact

Interesting Fact
To protect yours eyes when observing the eclipse of the Sun, stick together five or more film negatives and hold them in front of your eyes.


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This site will tell you the basic ways to observe the partial phases of a solar eclipse without damage to your eyes.

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Unit 5 Lesson 2 Interesting Fact

Interesting Fact
Boys and girls, do you know biodegradable plastics have already been created by using proteins from plants such as corn or soy.

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These sites will tell you how plastics can be made from corn.

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Unit 5 Lesson 1 Historical Trail


Historical Trail
The ancient societies had their own waste management system. It was discovered that the first dumps was developed by the Greeks (Athens) about 500 BCE.

Hi,
Interesting Fact
Factories have chimneys with special filters to filter harmful black smoke from being let out to the atmosphere.

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Unit 4 Lesson 2 Pasteurization

Historical Trail
In 1862, Louis Pasteur invented a process in which milk is heated to kill most bacteria and fungi, This process was later known as pasteurization.

Interesting Fact
Boys and girls, do you know what is UHT?
Ultra High Temperature (UTH) pasteurized milk does not require refrigeration until opened.

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You can get more information about pasteurization in the following site.

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Unit 4 Lesson 2 Historical Trail


Historical Trail
Nicolas Appert, a French chef invented a way to sterilize food in a sealed container. He then started the canning industry in 1809.

Hi,

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