Examples of liquids – Liquids are a form of substance that you can encounter in everyday life. However, in contrast to the gas and solid states, liquids have constituent molecules that can move freely. Therefore, the form of gas or solid can change according to the container.
In our daily lives, liquid substances have many benefits, and are very closely related to our lives. For example, for various purposes such as drinking, watering plants, or frying.
In physics, liquids can actually change shape, either partially or chemically if there is a change in shape as a whole. Examples of physical changes are evaporation and freezing, while examples of chemical changes are dissolving.
To find out more about liquids, here’s an explanation of the properties of liquids, as well as examples of liquids in our daily lives, Sinaumed’s. Let’s see together.
Definition of Liquid
Liquid has the meaning of a form or substance that has a fixed volume, and its shape always adjusts to its place or container. In other words, the shape of liquid objects can change according to the container.
This liquid or liquid substance is included in the four basic substances such as gas, solid and plasma. The four substances have significant differences. For example, unlike solids, molecules in liquids are closely spaced, and they are more free to move.
Liquids are also different from gaseous substances. Obviously, humans can see liquids and solids, but it’s hard to see gases. This is because the molecules that make up gas are more tenuous, and the attractive forces of gas molecules are also very weak compared to liquids.
General Properties of Liquids
In general, liquids have several properties, namely:
1. Form follows a place or container
The first property of liquids is to follow the shape of the place or container. If the container is oval, then the shape will follow the oval shape as well. Likewise with other forms, liquid objects will still follow the container too. This is because liquids have molecules that can move freely, so they can follow the shape of any place or container.
2. Flow to a Low Place
The next property of liquids is to flow from a high place to a low place. Of course this is due to the earth’s gravity and liquid molecules that can move freely.
3. Dissolving Certain Substances
Liquids also have the property of being able to dissolve certain substances, so that these liquids undergo changes, such as changes in aroma, color, taste, and texture. If the liquid solution is perfect, then this includes experiencing a chemical change, and if it dissolves only partially, it is a physical change. For example, water that dissolves tea and sugar.
4. Can Seep Through Small Crevices
Another property of liquids is that they can seep through the pores or small gaps in an object, because the molecules of liquids move freely and have the property of continuing to flow even though they pass through the slightest gap. However, liquid objects cannot seep into objects such as metal, plastic, and glass, because liquid objects cannot flow or seep or penetrate into solid objects.
5. Always Flat Surface
Liquids whose properties follow the shape of the container, when occupying the space of any container, the top surface will always be flat. This is due to the stationary state which has pressure to form according to the shape of the container.
6. The nature of pressing in all directions
Liquids have the property of pressing in all directions, this is due to their nature which definitely requires a container or place, if there is pressure it can move or flow in all directions.
7. Liquid objects have a fixed volume
Liquids do have the property of forming or changing according to their container, but their volume does not change or remain constant.
8. Filling the Room Fully
In addition, the nature of liquid objects is to fill space, meaning that liquid objects will fill all parts of the container or place until they are full.
What are the Benefits of Liquids?
Then, what are the benefits of liquid objects for human life? Of course the benefits of liquid objects are numerous, not only for humans but for other creatures, yes, Sinaumed’s. It can be said that liquid is the source of life for all creatures on this earth. In fact, almost 70% of our earth is water.
And also, the human body has a water content of more than half a percent of human body weight, or about 70% of human body weight. Therefore, it is certain that humans cannot survive without water. There are many more benefits of liquid objects for human life and other creatures, such as:
1. Eliminate Thirst (Dehydration)
Humans need liquid objects to drink, or eliminate dehydration. By drinking water, humans or other creatures can learn to focus, and also carry out various daily activities by drinking enough water and food.
2. Cleaning Function
Liquids can be used to clean things up. Like, cleaning the body by bathing, clothing, floors, shoes, and much more. So this liquid is very important, so we can live healthy and avoid bacteria.
3. Places where animals and plants live
An example of a large liquid object is sea water. In the sea, it is a place to live for various marine animals and plants. Which they depend on for their life through the water. Not only animals, but plants also need water to grow and develop, and carry out photosynthesis.
4. Can Be Used For Cooking
Of course, to fulfill daily meals, humans definitely need liquid objects, such as cooking oil, in order to be able to cook or make their favorite food. If there is no oil, the food cannot be fried. Likewise with boiling, all of these cooking activities require liquid objects so that the food is cooked.
Changes in the Form of Liquid Objects
Liquids can change into gas, solid, and vice versa. It depends on the trigger for the change. The main factor for the change in state is triggered by changes in temperature, and other external factors. There are several physical changes that can occur in liquids, namely:
Liquids can change form to freeze , usually this change in form occurs due to very cold temperatures. Freezing means a liquid transforms into a substance or solid object. An example is water that changes temperature when it is put in the refrigerator, then over time the water turns into ice cubes.
Then it can melt. Melting means the opposite of freezing, that is, from an object that was initially solid, then becomes liquid due to the rising temperature or heat factor. For example, ice cubes that are placed in a hot place or outdoors, the ice cubes will become water.
Evaporation is a process of changing the form of an object or liquid into a gas. The factor that influences this change is heat or heat. The evaporation process can occur when the process of boiling water, then the water boils and will release steam.
Condensation is the change from gas to liquid. This change usually occurs due to gas that is in a cold place turning into water droplets. For example, the leaves in the mountains must have drops of water in the morning, this is what is called dew.
Another property of liquids is that they can dissolve certain substances. It can change the form of liquid objects into other forms or elements. Solutions in these liquids usually have signs of change, for example changes in taste, aroma, color, and texture of the solution.
Sinaumed’s can find this soluble property when making coffee, milk, tea, syrup and other solutions. This solubility change can be when mixing liquids with liquids, or mixing liquids with solids.
Changes in liquid substances by dissolving also occur in chemical changes. Chemical changes also experience changes in shape and form, both in terms of taste, smell and color. Chemical changes in liquids can be characterized by objects that cannot return to their previous form or shape. For example, Sinaumed’s certainly cannot separate sugar that has dissolved into coffee or tea drinks.
Do you want to learn about any physics biology formula? You can learn about it in the book Collection of Middle School Physics Biology Formulas. Through this book, readers will know various kinds of physics biology formulas.
Examples of Liquid Objects Around Us
After knowing the reviews about the properties of liquids. Then, what are the examples of liquid objects that are around us?
The following are examples of liquid objects that Sinaumed’s can encounter in everyday life:
- Mineral water
- Soy sauce
- Liquid milk
- Cooking oil
- Liquid detergent
- Dishwashing liquid
- Coconut water
- Liquid bath soap
- Infusion fluids
- Liquid medicine
- Liquid nail polish
- Soda water
- Liquid lipstick
- Sea water
- Liquid compost, and much more.
You want to know how to make liquid compost to fertilize plants? So, you can look for it in the Guide to Making Liquid Compost-SPM .
What is Evaporation?
Evaporation is a natural phenomenon that often occurs, but is rarely understood. Though Evaporation often occurs in our daily lives. For example, when humans sweat, the rain cycle, dry bodies after bathing, and so on.
The popular term for evaporation is the vaporization process. So, it can be said that evaporation is the process of changing a liquid into a gas. Like changing ice to water vapor, changing water to water vapor, and so on.
Of course the evaporation process does not occur without certain factors. Usually the effect of evaporation phenomena due to changes in temperature, wind speed, humidity, and sunlight. Other indirect influences are latitude, altitude and time.
Understanding Evaporation According to Experts
The following is the meaning of evaporation according to several experts, including:
1. According to Lakitan in 1994
Evaporation is a process of evaporation of water that occurs, starting from the surface or stretch of water, and also solid materials containing water.
2. According to Suhardianto and Manan 1999
Evaporation is the process of evaporation or change of liquid into water vapour.
3. According to Robert B. Long in 1995
Evaporation is the process of evaporation rather than liquid or liquid, namely by adding heat factor.
4. According to Warren L. McCabe in 1999
Evaporation is the evaporation or transfer of heat into a liquid that can boil. The heat is supplied or obtained in various ways, either naturally or by adding steam.
Factors Causing Evaporation
There are several reasons that affect the evaporation process that can occur, including:
1. Sunlight (Ultraviolet)
The process of changing the state of matter really needs latent heat, especially heat from the ground and sunlight. The main source of solar heat (ultraviolet) can affect the amount of evaporation that occurs on the earth’s surface.
2. High Temperature
Very high temperature or air temperature also affects the rate of evaporation. The higher the air temperature, the better the air can absorb water vapor.
This is because the higher the air temperature, the higher the kinetic energy of the water molecules. The high energy will make water molecules move into the air layer above it.
3. Air Pressure and Humidity
Evaporation also occurs when there is pressure in the air layer, which is precisely above the water surface, this pressure is lower than the pressure on the water surface.
This different air pressure causes evaporation. The gathered water vapor will combine in the air above the surface of the water. This process causes air to contain water vapor.
4. Wind Speed
When evaporation occurs, generally the air above the water surface is more humid. What makes the air saturated with water vapor, the evaporation process does not occur.
So, in order for the evaporation process to continue, the saturated air layer must change to dry air quality. So in this case, sufficient wind is needed to help the process of exchanging air humidity.
Rain is a very important source of life for humans and all creatures, but rain can also be a symbol of suffering and disaster. Want to know the enormity of the meaning of rain events? You can read it in the book Dahsyatnya Rain
Well, that’s Sinaumed’s, information about the properties of liquids and their benefits for human life and all creatures. Now, you understand liquids and can use them as needed. Hopefully the information above can add to our insights.
If you want to find various kinds of books about liquids, then you can get them at sinaumedia.com . To support Sinaumed’s in adding insight, sinaumedia always provides quality and original books so that Sinaumed’s has #MoreWithReading information.
Author: Veronika Novi