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Fun Science Experiments for Kids

Enjoy our range of fun science experiments for kids that

feature awesome hands-on projects and activities that

 help bring the exciting world of science to life

How do things taste without your sense of smell?

Taste Testing Without Smell

We all know that some foods taste better

 than others but what gives us the ability

 to experience all these unique flavours? This simple

 experiment shows that there's a lot more to taste

 than you might have first thought




What you'll need:

  • A small piece of peeled potato
  • A small piece of peeled apple (same shape as the potato so you                                                    can't tell the difference)

 

Instructions:

  1. Close your eyes and mix up the piece of potato and the piece                                                    of apple so you don't know which is which.
  2. Hold your nose and eat each piece, can you tell the difference?

 

What's happening?

Holding your nose while tasting the potato and apple makes

 it hard to tell the difference between the two. Your nose and

mouth are connected through the same airway which means

 that you taste and smell foods at the same time. Your sense

 of taste can recognize salty, sweet, bitter and sour but when

 you combine this with your sense of smell you can recognize

many other individual 'tastes'. Take away your smell (and sight)

 and you limityour brains ability to tell the difference between

 certain foods.




طبقه بندی: articles،
برچسب ها: تست کن،

تاریخ : یکشنبه 9 شهریور 1393 | 07:45 ب.ظ | نویسنده : a j | نظرات

This diagram of the human body shows a range of organs that are important to human anatomy. They include the brain, heart, lungs, spleen, muscles, stomach, kidneys and more.




طبقه بندی: pictures،

تاریخ : یکشنبه 9 شهریور 1393 | 07:21 ب.ظ | نویسنده : a j | نظرات


Why Do We Get Hiccups

                                                       

“Drink lots of water.” “Have sugar.” “Hold your breath.” “BOOO!!” These are a few of the things you might have tried when you have the hiccups. What exactly is this strange thing that happens to our body and can be quite irritating when it doesn’t go away

What is a hiccup

A hiccup is a sudden, involuntary forced intake of breath. It happens when your diaphragm starts acting up. Your diaphragm is a muscle that helps your lungs contract and expand. Sometimes it can get irritated and jerk involuntarily. The jerk makes you inhale suddenly and you hiccup because your voice-box cannot open quickly enough to let the air pass. Hiccups, which can occur individually or in bouts, commonly happen rhythmically and the interval between each hiccup is relatively constant

Why do we get hiccups

Though most experts are not sure what causes hiccups and why we get them, they generally agree that they are triggered by minor stomach upsets. Sometimes, hiccups are said to have a psychological, rather than a physical cause, but nobody really knows. Some scientists think they might be a kind of malfunction in the nerves that control the breathing muscles

Of what use are hiccups

It is not known what good hiccups do to our bodies. But it is believed that it helps animals to swallow food that gets stuck in their throats. Animals which walk on all fours have to shift their food horizontally to get it from their mouths to their stomachs, which means it is easier for lumps of food to get stuck in their throats. Some scientists think that lumps lodged like this might press down on a nerve in the throat which triggers the hiccup

For how long do hiccups last

Hiccups can last for minutes, hours, days, even months. Majority of the times hiccups last for a few minutes and may resolve without any treatment. There are different classes of hiccups, depending on how long they go on for. While common hiccups are gone within an hour, persistent hiccups can go on for up to 48 hours, but are usually harmless. Acute hiccups go on for more than 48 hours. If hiccups go on for longer than two months, they are classed as intractable or diabolic hiccups, and are sign of serious illness

How can one get rid of hiccups

Among the many recommended cures for hiccups the most popular ones are eating something sweet or drinking water. Since hiccups are related to air blockage, the best cure is to get control of your breathing either by holding your breath or taking deep breaths

American Charles Osborne was entered in the Guinness World Records as the man with the longest attack of hiccups an estimated 430 million hiccups later. Find out for how long he had these hiccups




طبقه بندی: articles،

تاریخ : یکشنبه 9 شهریور 1393 | 06:59 ب.ظ | نویسنده : a j | نظرات


Mecca is regarded as the birthplace of Prophet Muhammad and features at the top of the list of most visited places on Earth.

Mecca is located in the heart of Sirat Mountains of Central Saudi Arabia

The central point of Mecca is the Ka’bah, or the ‘House of God’ and is covered in a gold-embroidered black fabric

The pilgrims have to circle the Ka’bah seven times

There is a ‘Well of Zamzam’ in Mecca, the water of which is believed to have special properties and health benefits

Ancient Mecca was an oasis on the caravan trade route that connected the Mediterranean world with South Arabia, East Africa, and South Asia

Pilgrimage to Mecca is known as Haj

An interesting ritual known as the ‘Stoning of the Satan’ is practiced at Mecca in which the pilgrims throw stones at three different Hajj pillars representing the Satan

مکه به عنوان محل تولد حضرت محمد (ص) و ویژگی ها در بالای لیست بیشترین بازدید اماکن بر روی زمین در نظر گرفته شده.

مکه در قلب کوه سیرت در مرکز عربستان سعودی واقع شده است. 

نقطه مرکزی مکه کعبه، یا «خانه خدا» است و در یک پارچه سیاه و سفید طلا دوزی پوشیده شده است.

زائران هفت بار به دور کعبه میچرخند.

آب زمزم در مکه وجود دارد که اعتقاد بر این است که دارای خواص ویژه و خواص درمانی است.

مکه باستان واحه ای بود در مسیر تجارتی کاروان ها که جهان مدیترانه ای را به جنوب عربستان، شرق آفریقا، و جنوب آسیا متصل میکرد. 

زیارت در مکه به عنوان "حج" شناخته شده است.

مراسم جالبی که  به عنوان "سنگسار شیطان" در مکه شناخته شده است در حج انجام می شود که در آن زائران   به سه ستون مختلف به نمایندگی از شیطان سنگ پرتاب میکنند.




طبقه بندی: articles،

تاریخ : یکشنبه 9 شهریور 1393 | 06:32 ب.ظ | نویسنده : a j | نظرات



تاریخ : شنبه 8 شهریور 1393 | 11:14 ب.ظ | نویسنده : a j | نظرات
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