Education and Communication 2024, December

Last modified: 2023-12-16 10:12

If you're lost in the woods or stranded at sea without knowing your way, an analog watch (or similar dial) can act as a compass and show you the way. You will only need an analog (not digital) clock or watch that shows the correct time, as well as a clear view of the sun.

Last modified: 2024-01-15 08:01

Sometimes you need to make a steel object magnetic. For example, it is easier to disassemble a complex machine with a magnetic screwdriver. In addition, this process can also be an easy experiment for children, which requires only a few special tools.

Last modified: 2023-12-16 10:12

Dry ice is solidified carbon dioxide. The gas we exhale when we breathe. It is called dry ice because it changes from a solid to a gas, or sublimates, without turning into a liquid. If you are creating a science project or simply creating a smoke effect, follow these safe steps for dealing with dry ice.

Last modified: 2023-12-16 10:12

Aside from being a science project, making a weather barometer is quite easy and fun. You can make an aneroid (air) barometer from balloons, jars, and other simple tools. Alternatively, you can also make a water barometer from a bottle, plastic pipe, and a ruler.

Last modified: 2024-01-15 08:01

One of the hardest things about learning math and physics is memorizing all the required formulas. Do not worry! There are several ways to remember the formula you need. If you understand the components and meaning of each formula, you can rebuild the formula, even if you can't remember it right away.

Last modified: 2023-12-16 10:12

A sundial is a device that uses the position of the sun to determine time. The upright wand, called the gnomon, is positioned to cast a shadow on the pre-marked sundial. As the sun moves across the sky, its shadow will also move. This concept can be easily demonstrated in your backyard with a very simple sundial made with a stick and a handful of pebbles.

Last modified: 2024-01-19 22:01

Crystals that just appear in a glass of water will look magical. In fact, these crystals are formed from compounds that have been dissolved in water. Make your own salt crystal experiment and find out how it works. Step Method 1 of 3:

Last modified: 2024-01-19 22:01

The buoyant force is the force opposite to gravity, which affects all objects submerged in a fluid. When an object is placed in a fluid, the object's mass presses against the fluid (liquid or gas), while the buoyant force pushes the object against gravity.

Last modified: 2023-12-16 10:12

Planet Earth has an internal structure consisting of 5 layers: the Earth's crust, upper mantle, lower mantle, a liquid outer core, and a solid inner core. The crust is the thinnest outermost layer of the earth and it is in this layer that the continents are located.

Last modified: 2023-12-16 10:12

Heat capacity measures the amount of energy that needs to be added to an object to make it one degree warmer. The heat capacity of an object is found using a simple formula – by dividing the amount of heat energy supplied by the change in temperature to determine the amount of energy required per degree.

Last modified: 2023-12-16 10:12

The term "laser" actually stands for "light amplification by stimulated emission of radiation". The first laser, which used a silver-coated ruby cylinder as a resonator, was developed in the 1960s at California's Hughes Research Laboratories.

Last modified: 2023-12-16 10:12

Would you like to experiment with homemade liquid nitrogen? There is good and bad news. Unfortunately, you can't make actual liquid nitrogen using simple household items. The good news is that you can make cryogenic alcohols, especially isopropyl alcohol, which can mimic some aspects of liquid nitrogen, especially the ability to reach very cold temperatures.

Last modified: 2024-01-19 22:01

Net income is usually the last number on the income statement, also known as the bottom line, which provides business owners with crucial information about how much money is left after expenses are paid. Therefore, net income is a measure of company profitability.

Last modified: 2023-12-16 10:12

In Indonesia, Canada, United Kingdom, and some European countries, temperature is measured in Celsius (°C). Meanwhile, in the United States, Belize, the Bahamas, the Cayman Islands, and Palau, temperatures are measured in Fahrenheit (°F). Luckily, you can easily convert from one unit to another when needed.

Last modified: 2023-12-16 10:12

Do you want to make a flamethrower to impress your friends? Are you very bored? The flamethrower is very easy to build and requires only simple tools (at least for the more dangerous basic versions). Read the steps below to make 3 types of flamethrowers with different levels.

Last modified: 2024-01-19 22:01

Centimeters and millimeters are units of distance used in the metric system. The word “centi” means one hundredth so there are 100 centimeters in every meter. The word “milli” means one thousandth so there are 1,000 millimeters in every meter.

Last modified: 2023-12-16 10:12

Videos showing that Mountain Dew (a carbonated soft drink produced by the Pepsi company) glow by mixing hydrogen peroxide and baking soda is a hoax. To actually make a glow stick (a plastic tube filled with a liquid chemical that ignites when it reacts) without breaking the finished glow stick and transferring its contents into the tube (this method is called deception), you have to show your scientific side (also prepare a fee).

Last modified: 2024-01-19 22:01

The ability to measure rainfall is important for many industries. So, it is not surprising that the rain gauge (rain gauge) was one of the first weather instruments invented by our ancestors. The tool is believed to have been used in India since 2,000 years ago.

Last modified: 2023-12-16 10:12

Traditional thermometers measure temperature using mercury, but can be made at home using only water and rubbing alcohol. While this thermometer can't be used to determine if someone has a fever, it can still tell you the temperature around the house.

Last modified: 2024-01-19 22:01

With water, dish soap and a little spin, you can make a tornado in a bottle! This experiment can be a great way to learn how tornadoes work. For a basic experiment, try making a tornado in a bottle. If you want to try a more complicated experiment, use two bottles and stick them together.

Last modified: 2024-01-15 08:01

Ever wanted to grow bacteria for a scientific project or just for fun? It turns out to be super easy – all you need is a nutrient agar (a special growth ingredient like gelatin), a few sterile petri dishes, and some disgusting sources of bacteria!

Last modified: 2024-01-15 08:01

The formula for calculating the circumference (“K”) of a circle, “K = D” or “K = 2πr” is easy to use if you know the diameter (“D”) or the radius (“r”). But what if you only knew the breadth? As with any math problem, there are several answers to this problem.

Last modified: 2024-01-19 22:01

It is undeniable, science class is an unavoidable scourge for most students, whether they are still in high school or university. Want to improve your performance in science class? Don't worry, try to establish an effective study routine and increase class participation.

Last modified: 2024-01-19 22:01

The dream of living off the land, plowing the land, as well as growing your own crops and establishing a connection with nature are desires that many people have. If you didn't grow up in a farming environment, you can easily imagine the romance of a farmer's life:

Last modified: 2024-01-19 22:01

Do you agree that science is one of the most difficult fields to learn? Actually, there is no learning method wonderful which is guaranteed to be effective for everyone. Remember, everyone is unique, so they must have different preferences for learning methods.

Last modified: 2024-01-19 22:01

Did you know that schools in Europe use the term Head Boy or Head Girl to refer to their school representatives? Well, it turns out that educational institutions in Indonesia also provide a similar position, namely the Chair of the Student Organization (OSIS).

Last modified: 2024-01-19 22:01

Duke University is an elite institution with a tradition of accepting only the most qualified students. On average, only about 13% of applicants are accepted. This admissions process includes a formal application, recommendation, an essay and submission of standardized test scores.

Last modified: 2024-01-19 22:01

Projects or school assignments take different forms and the detailed process of how to create a successful school assignment varies depending on the type of assignment and the class you are taking. However, there are general steps that you can follow in order to complete the task successfully.

Last modified: 2023-12-16 10:12

If you are concerned about your grades or academic success, you can try to study harder. Studying hard can help improve grades, both daily test scores and test scores. Make a study schedule, use the right study strategies, and focus on doing your best in class.

Last modified: 2024-02-01 14:02

Sometimes, it seems, every time you sit down to work, an incoming email notification goes off on your phone, or a roommate suddenly walks in telling you about the problem. Busy people have to experience a lot of distractions or distractions, and learning to manage those things can be a challenge.

Last modified: 2024-01-19 22:01

Who doesn't consider math exams to be a scourge? These fears are more likely to arise if math isn't the subject you're most proficient with. In fact, armed with the right strategy and preparation, doing well on a math exam is not as difficult as moving mountains, you know!

Last modified: 2023-12-16 10:12

Covering the book with paper will protect the hard cover from being damaged and torn. If you don't like using plastic or cloth covers to cover books, paper bags are a great, eco-friendly alternative. With brown paper bags, you can also customize the cover with your personal design and decor.

Last modified: 2024-01-19 22:01

A neatly organized school bag will make it easier for you to find your things and keep your homework clean. Sort and organize your school supplies in folders to make sure you only bring what you need. Organize your school bag. Take advantage of all existing pockets.

Last modified: 2023-12-16 10:12

With a little organization and discipline, you can do all your homework on time every day. Make a plan to break down each task into smaller, easier-to-find units. Step Method 1 of 4: Timing for Doing Homework Step 1. Decide how many hours you have available for after-school homework each day For example, Monday 1 hour, Tuesday 1.

Last modified: 2023-12-16 10:12

Studying before an exam may stress you out. The best way to study is to spend enough time memorizing the test material and trying to understand new information over and over again until you do. You must have heard many messages that forbid you to postpone studying until there are only five minutes before the test.

Last modified: 2024-01-19 22:01

"Mom, my stomach hurts. I'm not going to school, am I!". Have you ever heard those words come out of your mouth? If you've seen the movie Ferris Bueller's Day Off, you know that some kids have very creative and genius tactics for avoiding school.

Last modified: 2023-12-16 10:12

Many students experience boredom while attending lessons. The bells say 2:32 p.m., but you still have to sit in class until 3 p.m. The boredom of waiting for time to pass until the lesson is over makes one second feel like an hour. To make time feel shorter, do the following steps.

Last modified: 2023-12-16 10:12

Maybe you want to know how to become a good student council president because you have just been elected or have been a student council president for a long time. One of the duties of the student council president is to provide the best support for students and schools.

Last modified: 2023-12-16 10:12

Let's be honest-not every lesson, not every class you take is going to be interesting and engaging, no matter how hard you and your teacher try to make it interesting. Sometimes, the class just doesn't match your personality, sometimes you just don't care about the subject matter.

Last modified: 2023-12-16 10:12

Whatever your goal is, getting high marks in high school should be at the top of your priority scale. Remember, having good grades not only shows your academic quality, but also confirms that you are a diligent student, understands the material well, and is mature.