Comprehension of Passage
passages are non-textual passages; that is, passages which are not from the student. In the activity sheet this passage will be of approximately the same length as the seen passage extracts (about 200 250 Words.)
Special Features : Explanations and definitions given before every topic with examples. Exercises based on self help method. Exercises based on self help method. Exercises given in the form of puzzles and fun to make the subject more interesting and educative. Provides abundant practice.
Model Topics
Our Teeth
New born babies do not have teeth. The first tooth appears when a baby is about seven months old. By the time a child is 3 years old, all of the baby teeth appear. Little children have twenty baby teeth. Some time between five to seven years, baby teeth start falling off. But there's no reason to worry. Another set of teeth is ready to take the place of the baby teeth or 'milk teeth'.
People have thirty-two permanent teeth. Most of them appear by the time a person is ten years old. Only the last tooth on each side of the jaws appears later. Sometimes, these teeth appear quite late - even after a person is forty or fifty ! They are known as 'wisdom teeth !'
Animal babies also have milk teeth that fall off. Then they get a new set of teeth. Some animals are lucky. They get several sets of new teeth one after the other. But remember that when we lose a permanent tooth, we won't get another one. So, it's best to take good care of our teeth.
Care of our teeth
- We must brush our teeth and clean our mouth properly twice a day.
- Every time we eat something, we must rinse our mouth properly.
- We must take care of our teeth.
- We must brush our teeth in the morning and at night.
- Then germs will not stay near the teeth.
- We must not eat too many chocolates and ice creams. They are bad for the teeth.
- We should not eat or drink things that are too cold or too hot. They are also bad for teeth.
We had all gathered to play in the evening. Subhash had not come. He'd gone with his Grandpa to the dentist. Three months ago, Grandpa's teeth had all been removed. He was to get his dentures today.
Monikatai told us, 'Such dentures look like real. but the teeth are actually false.'
Ahmed who is in the first standard promptly asked, 'why get false teeth? My brother's teeth also fell, but they all grew again. Won't Subhash's Grandpa get new ones like him?'
That made everyone laugh.
Everyone laughed again.
Can you tell?
- Many people lose their teeth when they grow old. But some people lose their permanent teeth quite early. What could be the reasons for that?
Taking care of our teeth
If we do not that, particles of food remain in the mouth. They stick to our teeth and tongue. They get stuck in between the teeth. If they remain there, the teeth begin to rot. Then we get bad breath, that is, the mouth smells bad. If this happens often, the gums are also affected. They may ooze blood and pus. These foul substances go into our stomach. Then, we can fall ill.
Because of the rotting particles in the mouth, our teeth decay. Slowly the teeth become lose and in the end, they fall.
We must avoid this. For that, we must brush our teeth in the morning and before going to bed at night. We must also clean our gums and tongue.
Neem or babul sticks are sometimes used for cleaning teeth. Some people buy tooth powder from the market or make it at home. Many people use a toothbrush and toothpaste.
Neem and babul sticks or homemade tooth powders do not clean well from the gaps between our teeth. Also, tooth powder can be rough, while the neem or babul sticks are hard. They can injure our gums.
Using a brush and toothpaste, we can clean the gaps between the teeth properly. Besides, the foam of the toothpaste helps the particles stuck between teeth to come loose and get washed away.
Who is it ?
Types Of Vitamins
Vitamin A - Milk, Butter, eggs
Vitamin B - Meat, egg
Vitamin C - Fruits, Vegetables,
Vitamin D - Fish Oil, Sunlight,
Results of lack of vitamins
A Blindness
B Disorder of the nervous system.
C Skin diseases
D Bone diseases
Results of lack of vitamins,
Vitamins are mainly of four types : A, B, C, and D, we get vitamin 'A' from milk, butter and eggs. Vitamin 'B' is derived from meat and eggs. Fruits and vegetables provide us with Vitamin 'C'. Vitamin 'D' can be Obtained from fish Oil and of course from sunlight.
Effects due to the deficiency of Vitamins:
A lack of any of the above four vitamins may cause certain diseases and ailments. Lack of vitamin 'A' May result in blindness. insufficient of vitamin 'B' gives rise to disorders of the nervous system. Deficient supply of vitamin 'C' can cause skin diseases. Bone diseases are likely to occur in the absence of Vitamin 'D' .
Advantages and Disadvantages of Science
Science has helped man to make great Progress in every field of his life. But it has its own advantages and disadvantages.
Advantages : Science has made the World a smaller place. Science has conquered Space and Time. This has been possible due to quicker means of communications and transport. Science has done a lot , too, to save lives and to help people maintain good health. Life-saving drugs, the X-Ray, blood transfusions and transplants of organs have contributed to this.
Disadvantages : On the other hand, deadly weapons have been invented with the knowledge provided by science. population has increased tremendously all over the world and there is a Shortage of food. Children have become addicted to TV , Cellphone, computer and social media and are losing interest in books and studies. Thus Science has both its advantages as well as disadvantages.
How to be nominated as a World Heritage Site
There are five steps for nominating the World Heritage site. The first of which is for a country or state party to take an inventory of its significant cultural and natural sites. Then the site is included in a tentative list after an inventory in the country or the state. After it, the name of the site is included in the nomination file from the tentative list.
The review of the file is taken by the advisory bodies. Once the review is taken, the World Heritage Committee gives the decision. And then the name of the site is inscribed on the World Heritage list after meeting the criteria. Thus, it goes through rigorous procedure.
Heritage Of The World!
Heritage is our legacy from the past, What we live with today and what we pass on to future generation. Our cultural and natural heritage are both irreplaceable sources of life and inspiration we Should protect them as they are our valuable treasures. We Should preserve it for our next generation to make them understand how glorious our past was if we want to keep them safe. Sometimes an monitored visitors pose a threat to such sites, especially in developing countries Where sites lack the infrastructure to support the number of tourists. Tourists Should be encouraged to visit during off season and ensure they must not trespass areas marked as banned, not physically damage any monument, must leave the site clean and tidy. Security measures may be tightened. Lack of management, financial resources can also cause threat to the structure. So as a part of Security measures the local administrators must update the physical boundaries of the site clear. The local administrators must generally be proactive to ensure the preservation of World Heritage Sites.
Vegetable Riddles
An apple a day Keeps the Doctor Away
An apple is valued because it has the most nutritional value among all fruits. A medium-sized apple gives 80 calories and makes a good snack. It contains absolutely no fat. It also helps reduce the risk of some cancers. Because of its low sodium content, it reduces the risk of high blood pressure and heart disease. The apple has a substance that can reduce bad cholesterol and increase good cholesterol in our body . It is rich in Vitamin A, Which strengthens our vision. Apples also contain Vitamin C that boost the immune system in the body. They can even reduce the incidence of asthma. It is good to eat an apple after a meal. It is a natural toothbrush. Thus, this proverb reminds us of the role of diet in warding off diseases - and how it saves us the trouble of visiting the doctor.
Glossary : nutritional - promoting growth or affording nourishment as food. Cholesterol-a chemical substance found in fat, blood, and other cells in our body. boost - to improve or increase something. immune- protected against a particular disease, infection, ect. owing to the body's natural resistance.
Some Funny Riddles
What Is chocolate?
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- Ruby chocolate is a type of chocolate created by Barry Callebaut. The variety was in development from 2004, and was released to the public in 2017. The chocolate type is made from the Ruby cocoa bean, resulting in a distinct red color and a different flavor, described as "sweet yet sour".
- Raw chocolate is chocolate that has not been processed, heated, or mixed with other ingredients. It is sold in chocolate-growing countries and to a much lesser extent in other countries, often promoted as healthy. Pieces of dark compound chocolate cake coating.
- Compound chocolate is the name for a confection combining cocoa with other vegetable fat, usually tropical fats or hydrogenated fats, as a replacement for cocoa butter. It is often used for candy bar coatings. In many countries it may not legally be called " chocolate".
- Modeling chocolate is a chocolate paste made by melting chocolate and combining it with corn syrup, glucose syrup, or golden syrup. It is primarily used by cakemakers and patisseries to add decoration to cakes and pastries.
- Cocoa Powder is the pulverized cocoa solids left after extracting almost all the cocoa butter. It is used to add chocolate flavor in baking, and for making chocolate drinks. There are two types of unsweetened cocoa powder: natural cocoa produced by the Broma process with no additives, and Dutch process cocoa,
- Which is additionally Processed with alkali to neutralize its natural acidity. Natural cocoa is light in color and somewhat acidic, and is commonly used in recipes that also use baking soda; as baking soda is an alkali, combining it with natural cocoa creates a leavening action that allows the batter to rise during baking. Dutch cocoa is slightly milder in taste, with a darker color. It is frequently used for chocolate drinks such as hot chocolate due to its ease in blending with liquids. However, Dutch processing destroys most of the flavonoids present in cocoa.
Chocolate is made from the kernels of fermented and roasted cocoa beans. The kernels are ground to form a pasty fluid chocolate liquor, Which may be hardened in molds to form bitter (baking) chocolate, pressed to reduce the cocoa butter content and then pulverized to make cocoa powder, or mixed with sugar and additional cocoa butter to make sweet (eating) chocolate. The addition of dried or concentrated milk to sweet chocolate produces milk chocolate.
White chocolate, prized for its rich texture and delicate flavor, is technically not a chocolate. White chocolate is made from cocoa butter with added milk products, Sugar and flavoring such as vanilla.
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All about Glass
How glass is made
How glass is shaped
Once glass has become cold, stiff and hard, it is not possible to shape it. Glass is brittle. That means it breaks easily. It has to be shaped into different articles when it is still hot and soft.Very hot glass is more like a liquid - you can pour it, mold it, roll it, press it or even blow it to make a variety of shapes.
Hot liquid glass is poured into molds and hardened to make articles of various shapes and sizes. It can also be rolled out to make flat sheets of glass. In another process, molten glass is floated on a bed of molten metal to make very flat glass sheets of even thickness. Gobs of hot liquid glass can be blown into bottles, bulbs, glasses and other objects. Liquid glass can also be drawn out into very thin fires or glass wool.
Some properties of glass
Glass has many useful properties. It is transparent - you can see through it. It is strong and hard. You can put a lot of load on it. It is impermeable - it does not allow water or other liquids to pass through and it doesn't get soggy or stained itself. Glass has no effect on the food, water or other substances stored in glass containers. In other words, it doesn't impart a smell, or taste to them. Ordinary glass has a smooth surface and it can be washed easily. And last but not the least important is the fact that it looks beautiful. No wonder then, that it is used to make so many things.Coloured Glass
Ordinary glass is colour less but it is possible to produce coloured and transparent glass by using different combinations of chemicals in the glass making process. Glass can be given many beautiful colours - blue. violet, turquoise, ruby red, pink, amber, orange, deep yellow, purple, amethyst, dark green, even black and white !
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