Fire Water Balloon - Cool Science Experiment

How do people breathe in and out?

          We usually don’t have to think much about our breathing because our brain controls it automatically. When you have a lot of carbon dioxide the waste gas produced by body processes in our blood, our brain gets the message and tells our lungs to exhale and get rid of it. This action then causes us to inhale, drawing in air that eventually delivers oxygen to every cell in our body. This carefully regulated exhaling and inhaling takes place about 10 to 14 times each minute when we are breathing calmly.

What is AIDS?

AIDS stands for: Acquired Immune Deficiency Syndrome

AIDS is a medical condition. A person is diagnosed with AIDS when their immune system is too weak to fight off infections.Since AIDS was first identified in the early 1980s, an unprecedented number of people have been affected by the global AIDS epidemic. Today, there are an estimated 33.3 million people living with HIV and AIDS worldwide.

Why Is the Sky Blue?

Why Is the Sky Blue?

 The sun emits light that travels through space toward Earth because space is a vacuum. The light remains largely undisturbed until it nears the Earth, whose atmosphere is made up of a mixture of gas molecules (mainly oxygen and nitrogen) and other materials. The closer you get to the Earth, the thicker the atmosphere. Light from the sun appears white but is in fact a combination of colors, and the range of these colors that are visible to the human eye from red to violet, by way of orange, yellow, green, blue and indigo is shown when light is passed through a prism These different colors have different wavelengths and energies, with violet having the shortest wavelength and highest energy and red having the longest wavelength and lowest energy.

What is spectrum?

The electromagnetic spectrum is a vast band of energy frequencies extending from radio waves to gamma waves. When you listen to the radio, watch TV, or cook dinner in a microwave oven, you are using electromagnetic waves. It is represented by frequency (in Hertz) or Wave length (in meter). 

Largest and smallest cells in human body.

Cells are measure in Microns. The human ovum is typically around between 120 to 150 micro meters which is the largest cell in the human body. it is visible to the human eye under a microscope.

How compact fluorescent lamps (CFL) Works?

When an atom absorbs energy from any external source, it goes to excited state. When it come back to ground state it emits that energy in Ultra violet, Infrared or visible region. Normally tungsten filament emits light in uv region when it jumps from excited state to ground state. These photons hit the phosphor coating the inside of the fluorescent tube, and this phosphor creates visible light.

How do scientists measure the strength of an earthquake?

A few different scales measure how strong an earthquake is. The best known is the Richter scale, created in 1935, which uses an instrument called a seismograph to measure the size of the ground waves created by an earthquake.An earthquake’s size, or magnitude, generally ranges from 1 to 8 on the Richter scale (though the waves of some giant quakes have registered well beyond the top of the scale). The shock waves of an earthquake that registers a magnitude of 1 can only be detected with special instruments, while those with a magnitude of 8 cause massive damage.

Urea in our body

Urea is a waste product. It is found in our body and extracted from urine. However, it also plays a very important role in that it helps set up the countercurrent system in the nephrons. Urea is reabsorbed in the inner medullary collecting ducts of the nephrons, thus raising the osmolality in the medullary interstitial surrounding the thin ascending limb of the Loop of Henley. The greater the osmolarity of the medullary interstitium surrounding the thin ascending Loop of Henle, the more water will be reabsorbed out of the renal tubule back into the interstitium (and thus back into the body). 

Why are frozen foods less affected by bacteria?

Freezing in general causes cells to slow down everything. Cells work more slowly at lower temperatures. If you cool down to near-freezing, cells reproduce very slowly. At very lower temperatures the water in the cells will freeze. This can kill the cells or it slows down the oxygenation which degenerates food.

Why do we see light followed by sound in thunder storm?

When thunder and lightning occur in a thunderstorm, we first see the light followed by the sound. Normally sound travels in waves and we can hear the sound when these waves hit our ears. Similarly light also travels as waves.

Bones in our body

Babies are born with about 330 bones, but many of them join together during the process of growing up, creating fewer, larger bones. Adults have 206 bones. Some people end up with a few extra bones, though, in the arches of their feet or as an extra set of ribs in their rib cage.

What is a clone?

To understand cloning, we must first understand a few things about cells.  All living things, from the simplest to the most complex, are made up of cells. Cells are specialized to perform a variety of functions. There are muscle cells, skin cells, nerve cells, and so on.

What did dinosaurs eat?

Dinosaurs came in many different shapes and sizes, and they also had a variety of diets. Most dinosaurs ate plants, with the very large dinosaurs eating leaves from the tops of trees and smaller ones eating plants and bushes growing close to the ground.

Why do we have leap years?

Calendars are fairly fixed things. Each year has the same number of months and days, and the days follow a seven-day rotation going from Sunday to Saturday. But the movements of Earth do not conform exactly to the time designations humans have imposed.

Why are there 365 days in a year?

A long time ago (thousands of years, in some cases), when ancient societies recognized the need to record events and plan future happenings, calendars came into being. In colder climates, a calendar reflected the changing of the seasons and the movements of Earth around the Sun.

How can plants like seaweed grow underwater?

As long as they get enough sunlight to carry out photosynthesis, plants can live at various depths in oceans or other bodies of water. The stems of most underwater plants usually hold them upright so they can grow toward the light that filters down through their watery homes.

How can desert plants live without water?

No plant could live in a true desert, where it never rains. But the places where cacti and other desert plants grow do get rain only every couple of years or so. When it rains, desert plants quickly take up the water through their roots, storing it in fleshy leaves and stems. That stored water allows them to survive until the next rain comes.

How can a microwave oven cook food so fast?

Unlike other ovens, which cook food with heat waves made from burning gas or electric currents, microwave ovens use special bands of electromagnetic energy called microwaves (similar to light waves) to cook food.

Which country is the smallest?

 The smallest country in the world is Vatican City. It is located on 108.7 acres (or 44 ectares, which is not even half a square mile) in the city of Rome, Italy. 

Which country is the largest?

Russia is the largest country in the world, with 6,592,812 square miles (17,075,383 square kilometers) of area. 

Acceptable Noise

In common use, the word noise means any unwanted sound. The amplitude level of the undesired background noise is measured in terms of decibel.

How does a vacuum cleaner pick up dirt?

James Spangler, a janitor at an Ohio department store who suffered from asthma, invented his “electric suction-sweeper,” in 1907 as way of picking up the dust and debris that triggered his health condition.

Will a plant grow better if you talk to it?

Studies have shown that plants seem to grow better if they are talked to. But plants don’t have sound receptors or nervous systems, so scientists know that plants aren’t responding to the specific words people say.

What is the smallest living bird?

The smallest living bird is the bee hummingbird. Including its beak and tail, this bird measures only about 2 inches (5.5 centimeters) and weighs about two-thirds of an ounce (20 grams).

Why isn’t Pluto a planet anymore?

Pluto was once included in the list of planets, but is now considered a dwarf planet. Dwarf planet is an object in orbit around the Sun that is massive enough to have its own gravity to pull itself into a round (or nearly round) shape.

How did the universe begin?

Humankind has always puzzled over the origins of the universe. Scientists believe that the universe began with the Big Bang, a cosmic explosion that occurred between 10 and 20 billion years ago and threw matter in all directions.

Brown Recluse Spider-Range Could Expand in N. America With Changing Climate

One of the most feared spiders in North America is the subject a new study that aims to predict its distribution and how that distribution may be affected by climate changes. 

What Is Cancer?

What Is Cancer?

Cancer is the general name for a group of more than 100 diseases in which cells in a part of the body begin to grow out of control. Although there are many kinds of cancer, they all start because abnormal cells grow out of control. Untreated cancers can cause serious illness and even death.