When water goes down the drain, it travels through pipes away from the house. First, it goes into big pipes underground. From there, the water continues to a cleaning station. At the cleaning station, the water is cleaned of all dirt and trash so it becomes clean again. Once the water is clean, it can be sent back into nature, like into rivers or lakes.
The drain helps us take dirty water away and clean it, so we can keep the environment clean.
A home is a place where we keep our things, where we relax and have fun, and where family members live together. People often think of a home as a house or an apartment, but a home doesn’t have to be a building. Someone’s home could be a tent, a boat, or even a car.
If someone doesn’t have a home, they are called homeless.
When parents say it’s time to go home, it usually means it’s time to eat, rest, or go to bed. Even if you’re leaving a fun place, it’s important to listen to your parents and be thankful that you have a home to go to.
This is an interesting question combining the history of crosswalks, pictograms and traffic lights.
It’s known that pedestrian cross-walks existed in Roman empire more than 2000 years ago. These were raised stone paths across the roads that doubled as severs.
History of traffic lights starts in railways. First traffic lights in city centre were actually pedestrian lights installed in London 1868. Unfortunately the gas lamp caused an explosion which killed a policeman and the idea of traffic lights was forgotten for 50 years, until in 1914 in USA modern traffic lights were installed to help problems caused by high number of motor cars.
Third part of the answer is about the history of the “male and female” pictograms. these were invented in a museum in Vienna back in 1924 to help people who could not read the written text in signs. The modern toilet signs were included in the pictograms and since then people have associated these 2 stick figures to men and women.
It’s not well known when they started using a stick figures in pedestrian traffic lights. Basically the figure is just a “person” without a gender, but the association from toilet signs leads us to think he is a man. Actually in East-Berlin they used symbols where the person had a hat to clearly indicate he is male.
As a response to that many cities have since then used permanent or temporary setup of custom traffic light persons, male, female, kids, couples etc.
Blood moon is a name of the moon during a full lunar eclipse. In a perfect lunar eclipse the moon will be completely covered by earth’s shadow. The moon still does not disappear completely from sight, but appears to be dark red. Red color is the reason for designation of “blood moon”.
Time is usually divided into smaller parts to make it easier on various occasions to express and perceive the passage of time. For example. It is easier to say that the child is five years, than 438 000 hours old.
Some of the time units are based on celestial movements.
The year is the time in which the Earth goes around the sun once.
Month is a time in which the moon goes round the earth.
Day is the time where the earth rotates around itself.
In addition to these other entities has been developed, such as week and hour to make measuring time easier. Month has been split into four seven-day weeks and the days are divided into 24 hours.
Week is an old invention, but it has not always everywhere been 7 day long. In theBible, God created the world in seven days, but the idea is older.
One explanation is that the number seven came from the seven observed pieces of heaven. Names of days in certain languages still point to celestial bodies.
Sunday is the day of the Sun
Saturday is Saturn’s day
Monday is the day of the Moon
Poop is waste. It is the part of the food that remains after all useful as nutrients are utilized. Food is a kind of human “fuel” in the same way as gasoline in cars. Car exhaust pipe will exhaust gas and the human butt will poo.
While your body can not utilize poop substances, plants instead can. That is why, for example, a cow or a chicken poop is a good fertilizer and helps plants to grow well. The plants are then eaten and become poo again. This is how the natural life cycle works.
The air usually always contains some water vapor.
Water has three phases: liquid water, solid ice and water vapor. Under the 32-degrees water is usually in form of ice and in temperatures over 212 it turns into steam. Usually a window has warmer air on the indoors -side than on the outside. The outside air is making the window slightly cooler than the air inside. Therefore the water vapor in air is cooled down when it makes contact with the glass. When it cools, it turns back to liquid water and that forms the droplets you can sometimes see on steamy window.
The same phenomenon you can see in metallic cold water pipes. Pipes, “sweat”, because they are so cold that water vapor in the air will condense into water.
Also, human exhaled air is warm and humid. Therefore on cold weather breath turns into steam. You can also try to breath towards window or a mirror – it should generate some steam on it.
The carrot is a root vegetable growing in ground. The part that is growing above earth is normally not used for food, but the underground root is delicious and healthy snack. Rich in beta–carotene, which gives it an orange color. The carrot is after the potato one of the most popular root vegetables; it is eaten up to nine pounds per person per year.
Carrots are usually orange, but also white, purple, yellow and red carrots exists. In fairy tales and cartoons carrots are usually rabbits favorite food. Wild carrots do not exist everywhere, so in those areas rabbits need to eat some other plants.
Yoghurt is milk that is acidified using lactic acid bacteria. Yoghurt production is close to those of butter and sour cream. Also cheese is made by similar method. Before the start of the 1900s yoghurt was consumed especially in South-East Europe, Central Asia, the Middle East and India.
You can try the yogurt preparation at home for instance, together with the mother or father.
You will need a pot of milk and a half pots of seed of natural yoghurt. The milk is boiled in a saucepan and then allowed to cool to below 122 degrees. After cooling, the milk is mixed with yogurt – you can add milk powder, if you want a thicker yogurt. The mixture is then placed in the bowl or glass jars and placed in a warm place for 4-7 hours. A good trick is to heat the oven to 122 degrees, and then turn it off and put the jars there.
Ready yogurt can be flavored with sugar and banana for example. Self-made yogurt will remain in the refrigerator for about a week (on the surface may be formed whey)
