Ice cube physics. Drawing, description

CHILDREN'S SCIENTIFIC LABORATORY
Free library / Directory / Children's Science Lab

Ice cube physics. Children's Science Lab

Children's Science Lab

Put an ice cube from the refrigerator into a cup and fill it with water. He doesn't sink. The fact is that when water freezes, it forms a spatial lattice in which the particles are located more freely. The volume of ice is 10% more than water.

Often they talk about the "explosive" action of ice. There is no other way to call the phenomenon when even thick-walled cast-iron cores cannot withstand the mighty power of freezing water. Frozen water pipes burst.

Ice cube physics

We invite you to experience. Take a bottle of ink or cologne. Pour water into it. Don't forget to place it in the tin, which will serve as a screen for the fragments. Put all this in the freezer overnight or take it outside if the weather is frosty. In the morning you make sure you made a cold. One can only marvel at the force with which the ice tore apart a strong bubble. And it took only 60 grams of water!

If the vial is not closed with a lid, then the effect will be somewhat different. An influx of ice forms on the neck (see Fig. 1) - it shows how much the liquid initially expanded when freezing. But still, the resulting ice plug will not allow the ice to expand further. The bubble will burst.

Pour some water on a kitchen board. Put a tablespoon on the water. In a spoon - an ice cube. Sprinkle a pinch of salt over ice. Cooling occurs quite quickly - very soon the spoon will firmly freeze to the board.

The water will freeze even faster in the next experiment. Dip a piece of ice into a glass of water. Now pull it out with a match, do not try to pick it up - all attempts will be unsuccessful. Do it easier - press the match against the ice cube in the glass from above (see Fig. 2). Now sprinkle the cube with salt. We are sure that you will extract the cube on the first try.

The secret is that the addition of salt leads to a rapid cooling of the ice surface. And since there is clean water under the match, it will quickly freeze and freeze it firmly to the cube.

Can you carry ice cubes in a thermos? "And why not," - many will answer. And they'll be wrong. It turns out to lay cubes in a thermos - it's a simple matter. But extracting them is a hopeless job. The pieces are frozen to each other, forming one continuous piece of ice.

Everything is explained simply. The ice slowly flows under the influence of its own weight, the cubes seem to weld by themselves. Let's see from experience. Take two ice cubes and press them together. Under pressure, the ice begins to melt at temperatures below 0 ° C. A thin layer of water will appear between the pieces. If the pressure is released, the water will freeze again and the cubes will stick together. It becomes clear why snow, if squeezed with force - even in the hands - can turn into a piece of ice.

Through the ice covering the surface of a pond or lake, you can see frozen plants, and sometimes fish. It turns out that the ice is transparent. But ice cubes frozen in the refrigerator are cloudy due to air bubbles dissolved in tap water. If you use boiled water, the ice will turn out transparent like glass. Using this property, let's do the following experiment. Take a vessel with a curved bottom. Pour boiled water into it and freeze. You have made a lens. On a sunny day (see Fig. 3), you can make fire with an ice lens!

Author: V.Zavorotov

We recommend interesting articles Section Children's Science Lab:

▪ The power of rust

▪ Electric motor from paper clips

▪ Was there an earthquake?

See other articles Section Children's Science Lab.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

Women in sports will overtake men in 2156 02.02.2005

Andrew Tatham from the University of Oxford (England) analyzed data on world records for men and women in the 1900 meters at the Olympic Games from 2004 to XNUMX.

Women have been participating in this sport only since 1908, but the gap between them and men is gradually narrowing. If you extrapolate from the observed trends, it turns out that at the 2156 Olympic Games, a woman will become the world champion in sprinting. She will show a result of 8,079 seconds at a hundred-meter distance, and a male competitor - 8,098 seconds.

Tatham himself admits that his calculations are a bit of a stretch, but emphasizes that the growth of women's records for almost a hundred years has been surprisingly linear.

Other interesting news:

▪ Underground passages of old Europe

▪ Solar sails for spacecraft

▪ Microwave guns for launching rockets and spacecraft

▪ Cookies in orbit

▪ There may be water on Jupiter's moon

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Microphones, radio microphones. Article selection

▪ article Imaginary patient. Popular expression

▪ article When did the Olympic Games start? Detailed answer

▪ article Teacher-defectologist. Job description

▪ Surguchi's article. Simple recipes and tips

▪ article Adjustable voltage stabilizers K1156ER2P and K1156ER2T. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews