Easy experiments

Small experiments
Small experiments that will amaze you.

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Reason and remedies for long sightedness

Reason for long sightedness Long sight can occur at any age but it tends to become more noticeable above the age of 40 years. In rare cases, long sight is caused by other conditions such as diabetes, small eye syndrome (microphthalmia), cancers around the eye and problems with the blood vessels in the retina. Remedies : 1. Warm your eyes. Rub your palms together to create heat, and then place them against your eyes for five seconds. 2. Roll your eyes. 3. Focus. 4. Massage your temples. 5. Take a mini-nap.
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Structure and growth of Teeth

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Teeth Teeth are very important part of our body. They help us to eat food and speak clearly. There are many words which we cannot speak without teeth. You may feel difficulty to understand many words spoken by an old man without teeth. Teeth also give shape to our face also. A baby is born without teeth. Teeth begins to grow only after a baby is few months old. By the time a child is 2-3 years old,it has 20 teeth. These are also known as milk teeth or temporary teeth. At the age of six, the milk teeth starts falling off. New teeth grow in their place. The new set of teeth is called permanent teeth. All the permanent teeth grow by the age of 12 to 13. Generally, there are 28 permanent teeth. Four more teeth is called wisdom teeth come out between the age of 20 to 25 therefore, every adult has a set of 32 permanent teeth, 16 in the upper jaw and 16 in the lower jaw. Structure of teeth Structure of tooth A tooth is fixed to the gum by its root. The portion of tooth seen above t...
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