Education & Communication 2024, October

From the simple jellyfish to the more complex primate, the animal kingdom is home to a huge variety of organisms. It is estimated that there are 9-10 million different animal species on Earth. To catalog such a wide range of unique specimens, biologists use a classification system that provides pyramid "

Do you have to study for a biology exam? Are you stuck in bed with the flu and would like to understand what kind of microorganism hit you and made you sick? Although bacteria and viruses trigger disease in humans in similar ways, they are actually very different organisms, with a great variety of different characteristics.

Do you want to do a bacterial culture for a science project or just for fun? It's surprisingly simple, all you need is agar (a nourishing gelatinous substrate), sterilized Petri dishes and some disgusting sources of bacteria! Steps Method 1 of 3:

With one of the methods below, you can create a water-based fluid that will glow in the dark. According to the chosen method, the liquid could last even longer than commercially available light sticks. Later, you will even find a method to make flowers glow in the dark!

There are many methods of measuring bacterial overgrowth and some are more complex than others. While some accuracy needs to be sacrificed when taking measurements, the simplest way is quite accurate and is commonly used. The best known techniques are the observation and counting of bacteria, the measurement of the wet and dry mass or the level of turbidity.

Surface tension refers to the ability of a liquid to resist the force of gravity. For example, water forms droplets on the table because the molecules along the surface cluster together to balance gravity. This tension is what allows an object with greater density (for example an insect) to float on the surface of the water.

If you are doing lessons on ancient Egypt, mummifying a chicken could be an interesting and fun group project to learn the techniques and procedures used during the rituals. This experience can be memorable for students in the more advanced elementary classes who will be able to participate in the project, complete it and observe the result with your help.

Experimentation is the method by which scientists test natural phenomena in the hope of gaining new knowledge. Good experiments follow a logical path to isolate and experiment with specific and well-defined variables. By learning the basics of the experimental process, you will learn to apply these principles to your experiments.

How to make a galvanic cell battery using a lemon. Steps Step 1. Polish a small strip of zinc and a copper coin with a little fine sandpaper Step 2. Without breaking the peel, squeeze the lemon a little Squeezing releases the juices inside the lemon.

A barometer is a device capable of measuring air pressure, information that can then be used to predict the weather conditions for the next 12/24 hours. The air pressure is measured in hectopascals or in millibars, based on the area of residence and the measurement scale adopted by the instrument used to take the reading.

Doing well in biology takes time, dedication, and memorization. Even if you are not planning to pursue a career in biology, there are various ways to study this subject and be an ace on questions. Steps Step 1. Choose an area to study in an orderly and quiet way, with few distractions If you can't find the right environment in your home, go to the library.

Have you ever wanted to store a snowflake so it never melts, even when held in your hand or placed in the sun on a hot summer day? With glue and microscope slides, it's possible. You can keep it as a memory of a particular snowfall, start a collection of unique specimens or just have a fun and memorable activity with family and friends!

It may happen sooner or later that you have to roughly determine the temperature of the water and not have a waterproof thermometer. You can evaluate it by looking for signs that the liquid is almost boiling or freezing. You can also use your hand or elbow to test the heat level;

You can use a time capsule to hold your predictions, or your hopes for a certain project. A time capsule can be as simple as a shoe box full of items, stored (or forgotten) on a high shelf for a long time. Some time capsules, on the other hand, are created to last a long time, in which case it is recommended to use a stainless steel container, properly sealed.

While it may seem incredible, if you don't have a standard battery, you can use one of the potatoes you keep in your pantry. Do not you believe it? Then continue reading this tutorial to find out what are the steps to follow. Steps Step 1.

It is possible to corrode the shell of an egg leaving the membrane completely intact. In this way you will be able to carry out the so-called "naked egg experiment". The process is simple, takes a few days, and can be done very easily using everyday objects.

Many of us look at the weather forecast or use the internet to get all the necessary updates on the weather conditions. However, if you are in a place where you don't have access to any of these resources and you need to know how the weather will change, you can look at the clouds to find the answer.

A dichotomous key is a classification tool that is based on opposing statements, usually on the presence or absence of certain physical characteristics. By identifying a whole series of differences, it is possible to narrow the field until a particular specimen is correctly identified.

Publishing a scientific article in a journal or at a conference is a very important activity within the academic field. It allows you to interact with other scholars and refine your ideas and research. Scientific journals are perhaps the most common place for scholars to publish the results of their work;

There is no need to look up to the sky to see the clouds when you can make a fun one at home! All you need is a glass jar or plastic bottle (such as a soda bottle) and some common household items. Try this simple experiment to make a cloud in a bottle.

Pendulums are very simple and fun to make! These are basically objects that dangle from a fixed point and that sway back and forth under the action of gravity. While they can be used inside watches to manage the hands or to demonstrate the movement of the earth, they actually make for a fantastic experiment too!

Knowing the wind direction can be very important information in different situations. For example, if you are sailing, playing with a kite or deciding where to place a windmill, the movements of the air currents are a key detail. Fortunately, there are several methods for determining this figure;

Every middle school or high school student must learn about the structure and morphology of living cells in science classes at one point or another. Maybe it happened to you recently too and you have studied the various organelles of animal and plant cells.

The anemometer is an instrument made to measure the wind speed. With just a few tools, it is possible to build one by hand: it is a simple project that even students can carry out to learn different scientific methods and concepts, such as experimentation, data collection, wind speed and other physical quantities.

The brain is a complex organ, but with some advice, you can create a rough clay model of it. Making the basic brain shape is very simple. For a more accurate and scientific project, however, try making a brain atlas or a detailed model. Steps Part 1 of 3:

Statistical significance is a value, called p-value, which indicates the probability that a given result will occur, provided that a certain statement (called the null hypothesis) is true. If the p-value is small enough, the experimenter can safely say that the null hypothesis is false.

There are eight known planets that orbit the Sun, including the Earth. Making a model is a fun way to get started with our solar system and also a good design for an elementary school science course. The one described in this article takes a few hours to work, but it mostly involves waiting for the paint or clay to dry.

This simple version of a traditional scientific experiment is a fantastic project to prove that oxygen is a byproduct of photosynthesis. It is best to start it on the morning of a sunny day. The elodea was chosen because it is a plant that gives oxygen in the form of easily observable bubbles.

Cells are the basic "building blocks" of life. All organisms (multicellular and single-celled) possess them; the animal ones have numerous differences from the vegetable ones, for example they do not have chloroplasts, vacuoles and cell walls.

Building a model of the Earth is a fun project that also allows you to learn geography, geology and astronomy. Gather the colors and get ready to go around the world! Steps Method 1 of 3: Making the Model Step 1. Get a large Styrofoam ball You can find it in fine art stores or in stationery;

A clinometer, also called a tiltmeter, is an instrument that measures the vertical inclination, that is, the angle between a plane or the observer and a tall object. A simple, "fixed angle" clinometer provides the ability to move much forward and backward during measurements.

In electromagnets, electric current flows through a piece of metal and creates a magnetic field. To create a simple electromagnet, you need an energy source, a conductive material, and a metal. Wrap insulated copper wire tightly around an iron screw or nail before connecting it to a battery and watch your new electromagnet pick up small metal objects.

You may never launch a real rocket, but you can have fun building one with water! Steps Step 1. Prepare 2 x 1.5L plastic bottles Step 2. Cut one of the bottles into 3 parts Keep the top and middle. Step 3. Attach the top of the bottle you cut to the bottom of the intact one Step 4.

Do you feel disheartened about a task as you can't remember the difference between food chain and web? This article teaches you how to draw a food web. Steps Step 1. Make a list of the organizations you need to include in the network For convenience, suppose you consider grass, grasshopper, cow, bird, fox, and human.

An educational and fun activity. This is a simple scientific experiment that can also be done in the classroom. You need to have prisms available, which may be available in the science lab. Steps Step 1. Assemble the material Step 2.

If you work as a science teacher in middle school, your students' books will most likely have a diagram of an electroscope. Do you want to try to make it real by creating a 'home' version of this tool? Your students will cheer you on! Steps Step 1.

By attending your school's biology class, you may need to dissect a frog. The procedure described in this tutorial will allow you to obtain the maximum result without creating clutter and without difficulty. Steps Step 1. Prepare all the tools you will need See the 'Things You Will Need' section.

The word "laser" is actually the acronym for "Light Amplification by Stimulated Emission of Radiation", or "Amplification of light by means of the stimulated emission of radiation". The first laser in history was developed in 1960 at the Hughes laboratories in California, and used a silver-coated ruby cylinder as a resonator.

Do you want to show your pupils or your children an experiment that is fun, safe, easy to clean and capable of producing truly amazing results? Well, with a little milk and vinegar you can create a plastic-like material in minutes. The experiment does not involve any risk, so you can later use the plastic obtained as you like.

Mitosis and meiosis are similar processes which however have definite differences. Gametes are produced through meiosis and are essential for sexual reproduction; they are ova and spermatozoa, as well as spores and pollen. Mitosis, on the other hand, is part of the reproduction of all other types of cells in the body.