Natural size animal trace stamps: deer, roe-deer, crane, boar, badger, wolf, hare, polecat, pine marten and fox. Pick a stamp and push it on the wet sand, then try to find the trace on a board.
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Toilets with the photoelectric cell washbowls. There are also special information boards telling about global water resources and instructing how to economize it.
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Microscopes - biological and stereoscope - use them to observe the variety of bacteria and other things we contact everyday. All preparations are also visible on big tv screens.
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Anatomical trunks (female and male) with inner organs that can be taken out, so you could see what do they looks like: kidneys, stomach, liver, heart, lungs, pancreas, small intestine, large intestine, duodenum diaphragm. Your task is to place all the organs in the right places.
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There are two wheelchairs, use them to "drive" 100 metres distans. To make the wheels roll you need the muscle energy. After you go 100 metres, you will find a liquid in a cup from a juice distributor. The amount of the liquid correspond to the amount of calories you just burnt. You will be aware of the energy quantity that is needed to keep the balance between the amount and kind the food you eat and the daily energy requirement.
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An interesting puzzle that helps youngsters to meet the world. You can find terrestrials in their regional uniforms, located on the each of the colorful continents. This station makes it easier to take first steps in the geography. Handles placed on the puzzle elements let younger visitors to grab puzzles easily. The station is augmented by geographic and naturalistic colouring sheets.
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Using the wooden wall labyrinth a child can practice the agility and observation ability. Visitors try to find the outway using a pawn attached to the labyrinth.
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Boards helpful with acquainting the geometrical figures.
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Puzzle - body:
Five layers of puzzle, you can set a human body - a boy and a girl. Every layer consists of a few elements and it corresponds to different body structure – muscles, internal organs, etc. Younger guests find out, how multifaceted is human body.
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A Chinese dissection puzzle. It consists of 7 elements, called tans. The task is to form a specific shape using all seven pieces.
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Two mirrors placed at a right angle to each other, letting you observe the picture that is not inverted - like in a common mirror.
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The task is to draw an object to write a sentence observing its reflection a mirror.
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A special mirror letting you see a mix of your faces!.
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You can put your head on a tray! Curious how? Come and find out!.
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Look through the opening and observe two people inside. Depending on the spot they're standing, you can see them growing or getting smaller!.
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People with artificial pacemaker should not approach the plasma sphere , because of a danger that strong electric field might cause to pacemaker work.
Electric equipment work could also be disturbed.
The plasma sphere is composed of a spherical glass shell containing a low pressure gas (1-10 mm mercury) and a central electrode. After you switch it on, inside it forms a high-frequency electric field that generates plasma.
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Jump into the colourful music floor and create Your own melodies!.
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Zither is an music instrument, that will easily excite your musical talent. With the help of special music notations you can play simple compositions or create Your own one!
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You can make different size and shapes soap bubbles: round, cubical. You can even "hide" inside of a giant bubble!.
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Simple machines presentation. Pulley blocks system allows you to pick up heavy weights without putting big effort in it.
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Two aquariums with model vessels. Try to keep balance of a vessel placing little containers on it in a right way or pouring water into the tanks.
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Whose tracks are these?
If you want to know what different animals’ traces look like, imprint their tracks in the sand and compare them to the pictures on the board.
It takes more than just trees to make a forest. There are also bushes, shrubs, lichens, mosses, fungi, as well as decaying tree trunks and branches, among which live different kinds of organisms. If you listen carefully enough, you can hear the voices of birds, notice slinking animals. It’s often possible to observe their traces imprinted in mud or snow. If you take a close look at the tracks, you can recognize the animals that left them, the direction they were heading in, how big the herd was, were they running or sneaking?
The animals living in the forest can be recognized not only by their tracks, but also by other traces, such as faeces or pellets - indigested parts of food regurgitated by birds or bats.
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Water usage:
Do you need to save water?
In the taps there has been installed a photoelectric cell, the purpose of which is to limit the usage of water to the absolutely necessary volume.
In the course of twenty-four hours water dripping from a leaking tap can fill an entire bathtub.
6 drops per 10 seconds adds up to 12 litres per twenty-four hours.
1. Without water there is no life.
It’s inevitable for the proper functioning of our organisms. The body of a grown human being consists of water in up to 60%. Every day we need it for drinking, cooking, washing, laundering, flushing the toilet, watering plants…
2. The volume of water on Earth is on a constant level.
Oceans and sees cover roughly 70% of our planet’s surface. Only 3% of this is sweet water and only 1% is sweet water that can be accessed, as most of it is frozen in the glaciers of Antarctica and Greenland.
3. Access to clean drinking water is the indispensable right of every human being.
However, over one billion of the approximately six billion people living on Earth have no acces to safe drinking water supplies. Around one third of the world’s population suffers from the lack of possibility to use sanitary facilities stocked with water.
What can you do to save water and limit the extent of its pollution?
• Use the shower instead of bathing in a bathtub.
• Do not allow water to drip from a leaking tap.
• When brushing your teeth use water poured into a cup beforehand.
• Close the tap each time you don’t need to use directly running water.
• Wash the dishes using a dishwasher or a bowl and rinse them under running water.
• Install a volume regulating system in your toilet flush to limit the necessary water usage.
• When buying a new washing machine choose a model with an economic water usage function.
• When possible, water plants with rainwater.
• Do not pour chemically polluted liquids into the sink, washbasin or toilet.
• Do not wash your car on the street, nor by a river or lake.
• Use environmentally friendly washing powders and cleaning substances.
• Dispose waste only into special containers, which are emptied onto an adequate waste disposal site or sent to a waste utilizing facility – this will prevent ground water pollution.
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Microscope:
How to observe the invisible with the naked eye?
Amongst the specimens prepared are plant and animal tissues – you can observe them closely with the help of a biological microscope. In turn, using the stereoscope microscope you can find out how various objects are built.
You can also observe images enlarged by the microscopes on the monitors located nearby.
Some objects are so small, that it is impossible for you to see them (all the more their construction) with the naked eye. You can use a magnifying glass, but if you want to take a really close look at them – use a microscope. Even the simplest optical microscope magnifies the image of an object more than 2000 times!
The construction of such a microscope is based upon a combination of an optical and a mechanical system. The optical system provides optimum lighting for the observation of objects and magnification of their image; the mechanical system is responsible for the correct positioning of the optical system’s elements.
The basic components of a microscope are: a condenser – a system of lenses or mirrors which concentrate light rays, an objective lens – creating a true, inverted and vastly enlarged image of the object, and an eyepiece – giving a virtual, a dozen times enlarged subsequent image of the image previously magnified by the objective lens.
Currently there are a number of microscope types, such as the electron microscopes, which create the enlarged image using a beam of electrons, or an acoustic microscope, in which the magnified picture is delivered with the use of ultrasound waves.
A stereoscopic microscope possesses separate oculars for both eyes, which makes it possible to see the magnified image in a three-dimensional way.
Microscopes are used for the observation of small objects in numerous sciences. In biology, amongst others, microscopes help to examine micro-organisms and tissue structure; in chemistry and physics, they enable the observation of crystal transformations; in geology microscopes make possible the study of rock structure; in technology and medicine facilitate diagnostics.
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Anatomical torsos:
The external appearance of your organism is well known to you. But do you know how the human body is built inside? What do the individual organs look like? Do the female and male internal organs differ?
The human body consists of millions of tiny cells. Those cells, which have a similar construction and carry out specific functions, compose tissues (for example those cells, which transmit nerve impulses, compose the nervous tissue; the muscle cells, which are able to contract and carry out work, compose the muscle tissue). Tissues form organs and organs, which cooperate, form systems (e.g. the digestive system, the nervous system, the reproductive system, the muscular system). Systems construct organisms.
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Food burning:
Where do you get your energy from?
Sit on the wheeled mobility device, press “start” and find out how much energy is needed to move about on a wheelchair. Our organism is a “complicated machine”, which is able to perform many diverse activities: think, move, play…
The food eaten by you is an accumulated form of energy. Physicists will say, that the moment you begin conducting any type of action, this stored potential energy will transform into a type of energy referred to as “kinetic”.
The fuel in a spacecraft or the explosive materials in fireworks possess potential chemical energy, which converts into kinetic energy when the spacecraft takes off or the fireworks explode. Likewise, when you eat, you refuel your potential chemical energy reserves, which serve as a supply of kinetic energy when you set in motion.
Part of the eaten nourishment is broken down to glucose in the process of digestion. With the help of oxygen, inside the millions of tiny cells your body is made up of, glucose is changed into energy. When we speak of burning food, we have in mind that very process. Energy is measured in units called joules (“J” being the symbol of a joule) or calories (“cal”).
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Meet the world:
Come and play!!!
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A wall labyrinth:
Come and see!!!
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Shapes:
Come and see!!!
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Butterfly and mountains:
Come and play!!!
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Puzzle - body:
Come and play!!!
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The Tangram:
Come and play!!!
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The true mirror "Barbershop":
Do you know your true appearance?
Observe your reflection in the single mirror, and then in the mirrors that are set perpendicularly. Touch your left cheer, blink your right eye. What is the difference between the obtained reflections?
In the fist case you see a reversed image and in the second – an image reversed twice. Your reflection in the first mirror blinks back with its right eye and touches its left cheek, contrary to what you did. The reflection in the second mirror does exactly the same as you.
Try to brush your hair using the single and the double mirror. Your brain is used to using the single mirror and the reversed “left-right” image, which is why, when brushing your hair, shaving or doing your make-up you find using the single mirror easier.
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Drawing in a mirror:
What images do we see in mirrors?
Try to draw a geometrical figure on a piece of paper observing only its reflection in the mirror. It’s not easy, is it? Now, looking only at their reflection in the mirror try to write different words down on a piece of paper. Letters in the mirror are reversed, but we are able to write without looking at the paper if we are fluent.
Can you write down letters and words in such a way for their mirror image to be readable? The inscriptions on ambulances are reversed for other drivers to be able to read them properly in their rear-view mirrors.
Mirror-image cursive was used by the lefthanded Leonardo da Vinci. Notations regarding his research and inventions could only have been studied with the hepl of a mirror!
Images created in mirrors can be real or virtual. In the first case, the image is created as a result of an intersection of reflected light rays. Such images form in spherical mirrors.
Flat mirrors always produce virtual images, which are the effect of the intercesting extensions of reflected rays of light. Moreover, images produced by flat mirrors are characteristic due to the fact, that the right and left sides of the object being refelcted are reversed, and the image created is also inverted vertically.
This is why it’s not easy to write on a piece of paper, when what is being written can olny be observed in a mirror.
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Mirror mix:
Ever wonder how would you look like with a borrowed nose?
Can you mix your faces?
Sit on the opposite sides of the mirror and watch each other’s faces. Are you sure these really are your faces? What you are looking at is not a real mirror. In between the mirror surfaces that reflect light there are empty spaces, which light rays penetrate freely. This is why the face that you can see consists of two visages and includes facial fragments belonging to the person sitting on the opposite side.
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A head on a tray:
Please come and check for yourself!
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The Ames room:
Please come and check for yourself!
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The plasma sphere:
Please come and check for yourself!
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Musical floor:
What sound is it?
Sounds can be loud or quiet, high or low.
A sound’s pitch depends on the frequency of the sound’s source’s vibrations. When a string is vibrating quickly, it generates a high tone; when it’s vibrating slowly, the tone is low. The speed of the vibrations is described as the frequency of the sound. For example, when playing a guitar it’s possible to obtain sounds of a different pitch by strumming thick or thin strings, adjusting their tension and regulating their length by pressing on the appropriate fret. Sound travels through air in the form of a wave. A high sound has a shorter wavelength than a low one.
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Zither:
What is this?
Zither is an music instrument, that will easily excite your musical talent. With the help of special music notations you can play simple compositions or create Your own one!.
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Soap bubbles:
What kind of a force welds a soap bubble?
A drop of water keeps intact due to the existence of a physical phenomenon known as surface tension. When soap is added to water its surface tension weakens and its surface layer becomes more elastic. This is why we are able to create soap bubbles.
Immerse the wire ring in the liquid and blow into the film or swing the ring to form a bubble. Its size will depend upon the velocity of the ring’s movement or on the strength of the blow.
Try to create a bubble using the wired hexagon. Immerse each of its sides in the liquid and observe the shape of the bubble.
Try to create a bubble using the wired hexagon. Immerse each of its sides in the liquid and observe the shape of the bubble. If you want to find yourself inside such a bubble stand on the pedestal and slowly raise the hula-hop from the liquid to an above-head height.
Do you know where the colours on the surface of the bubbles come from?
It is an interference image, which is caused by interfering light waves.
Some of the white light impinging onto the bubble penetrates through it, some is reflected off the inner, and some off the outer surface. A beam of light reflected off the inner surface interferes with the beam reflected off the outer surface, thus creating a chromatic image, also dependent on the thickness of the bubble walls’. In time the bubble becomes smaller because water evaporates from it – due to this the colourful blurs on the bubble change and fade.
If you would like to observe the iridescence of the soap bubble, slowly elevate the bar from the liquid-filled basin using the attached strings. In front of you will form a large membrane – blow into it and see how the colours alter.
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Pulley blocks:
How to lift great weights?
In front of you there is a frame with a series of punching bags attached to it. Each bag has an exactly identical mass. Try to pick up a bag using one, two or four pulleys at a time.
Do you notice the difference?
Was the amount of force necessary to pick up a bag equal in each case?
A block and tackle pulley is a simple machine, which makes it possible to elevate heavy objects using lesser force. A pulley reduces the effort needed in order to lift a load. It’s easier to pull a rope, redirecting the lifting force downwards, than to pick something up. A compound pulley consists of a number of blocks and tackles combined into a system. The more wheels there are in a pulley the larger its load capacity, as the weight of the load is divided upon a longer rope length. Four combined blocks and tackles make it possible to apply an approximately four times lesser force when picking up loads.
Pulleys are widely used in cranes, elevators and on sailing boats.
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29th of July 2010
Animal traces:
Water consumption:
Microscope:
Anatomical torsos:
Food burning:
Meet the world:
A wall labyrinth:
Shapes:
The Tangram:
The true mirror "Barbershop":
Drawing in a mirror:
The Ames room:
The plasma sphere:
Music floor:
Zither:
Soap bubbles:
Pulley blocks:
Vessels:
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