Science

On the spectrum of electromagnetic radiation, infrared light is between radio waves and visible light. Infrared light is invisible light that consists largely of thermal radiation. One of the main...

You can make an electric doorbell as a science project. This project will demonstrate the concept of magnetic suction. Your doorbell works when an iron rod is sucked through a coil of copper wire...

Acidity arises as a result of the presence of positively charged hydrogen ions, denoted as H+. Acidity is traditionally expressed using the pH scale. On this scale, a neutral solution such as...

In aqueous (water) solutions the acidity is determined by the concentration of hydrogen ions, denoted as H+. Since the H+ concentration can be low such as 0.000032 mole/L, it is more convenient to...

Food coloring mixtures can be easily separated through a method called paper chromatography. While laboratory-grade chromatography kits provide accurate and reliable results, you can create your...

The pH scale is in the range from 0 to 14 and determines how basic or acidic a solution is. The neutral media has pH 7. Values below 7 correspond to acidic solutions. The majority of fruits...

Making a crystal radio is an easy and fun project for kids and newbies who want to learn about electronics. Crystal radios are easy to build and they don't require any batteries to work! The...

Paper airplanes are fun. Challenging gravity by folding a piece of paper can give anyone a feeling satisfaction--nearly as much as the Wright Brothers when they flew the first powered flight in...

The pH of river water is a measure of free hydrogen and hydroxyl ions---which translates to how acidic or basic the water is. Greater concentrations of free hydrogen ions result in higher acidity...

Several types of adhesive can be used to adhere paper to other sheets of paper or other materials, including wood, fabric, or chipboard. The process of choosing an adhesive includes determining...

Parchment paper is a special paper often used for cooking. The paper itself is often considered to be a substitution for wax paper. Parchment paper can be used in most situations that calls for...

Paper airplanes are simple ways to explore the relationship between gravity and space. Kids learn how to use their imagination and how to apply physics using simple materials found virtually...

A cyanotype is a monochromatic photographic print. As its name implies, the print is generated in shades of cyan because of the chemical composition of the cyanotype process components. While...

Experimenting with paper airplanes teaches physics, aerodynamics, creativity, gravity and provides fun, competitive play. Hang time refers to the length of time the plane stays or "hangs" in the...

Paper airplanes entertain children and adults. The materials are simple and easily available. When you make and fly a paper airplane, you are applying physics and using your imagination. Paper...

A logarithmic scale is used to graph exponential curves so that detail of small units can be shown in the same graph as the general curve shape at large units. The decibel scale, Richter scale, pH...

The pH scale reflects how basic or acidic a water solution is. Neutral media such as distilled water has pH 7. The pH values below 7 correspond to acidic solutions, while a pH greater than 7 is...

Litmus has literally been used for centuries for testing substances of different kinds. It is still used today in countless schools and water-testing facilities. You may have even used litmus...

Filter paper is a basic supply item found in beginning chemistry labs as well as in research labs. Material, called solute, is deposited on the filter paper and can be analyzed for its chemical...

Today, recycling grows increasing more important as it helps us preserve the planet's natural resources and protect it from too much waste. We use paper on a daily basis, through mail, notebooks,...

An acid (for example, hydrochloric acid, HCl) is a substance that releases or donates the hydrogen ion (H+), while a base (for example, sodium hydroxide, NaOH) is a hydrogen ion acceptor. The pH...

The pH scale is in the range from 0 to 14 and determines how basic or acidic a solution is. The neutral media has pH 7. pH values below 7 correspond to acidic solutions, while a pH greater than 7...

It is difficult to pinpoint the precise development of paper historically, because several cultures worked on creating what we know as paper, and many began or ended at various times. However, the...

Recycling has become second nature to many people, and many municipalities across the country either provide curb-side pickup service or operate drop-off recycling centers. With all this material...

Physics is the study of the laws of nature. High school physics activities can be very simple to perform while also providing a great way to experience physics in real life. Taking physics from...

With ever increasing concerns about our environmental impact, it's important to understand the impact that waste and recycling have on our efforts to improve the health of the planet.

All printer inks are made of three different parts: a colorant, a solvent and a number of additives to help the color bond to the paper. The color always comes from the colorant, but how the...

I know Mom and Dad said not to play with matches, but this is a little something I used to make that I thought some of you might get a kick out of. I know the guys at work do when I build my...

A rain gauge is a device used to measure the amount of rainfall. Making a rain gauge is a fun and simple activity for children, but it can be enjoyed by people of all ages. Watching the rain gauge...

The pH level of a liquid indicates how acidic or base the liquid is. By dipping the pH paper in liquid and observing the color that paper turns, you can infer the level of acidity or baseness of...

Blueprinting is the process of transferring architectural plans from drafts onto paper as a final design that is used by contractors and construction workers to build the design. The chemical...

This how-to will show you one way I transfer a printed circuit board (PCB) layout "on the cheap" without using UV lights or photo developing. This is commonly referred to as the toner...

To understand why color fades first it's necessary to understand what color is. Visible light vibrates at a frequency between 0.7 micrometers and 0.4 micrometers, with red light vibrating at one...

Paper or plastic? is a choice shoppers have made--or least debated about--for years. Their primary concern centered around where the bags went after they had been used. Paper bags were created...

To understand what makes the color on paper fade, first we need to understand what color is. Light appears as different colors depending on the wavelength of the light. Visible light occupies the...

The first paper was handmade over 2,000 years ago. Since that time, we have vastly improved the quality and production of it. Now, with the wide availability and use of paper, it is the largest...

Paper-recycling plants take in a large amount of paper, break it down and reuse it as recycled materials. Because all kinds of paper come from the same source, tree fiber, they can all be broken...

Transfer paper is used for moving an image from one material to another. The image is printed on the paper and then, through application of heat or a solvent such as water, the image can be...

Flash paper is a specially treated paper used by magicians in a variety of tricks and performances. When touched by a hot object, such as a lit cigarette, match or spark, it quickly bursts into a...

A paper cup phone requires two cups, a length of inelastic string, thread or fishing line, two paper clips and a pencil or sewing needle. To create a paper cup phone, poke a hole in the bottom of...

Paper towels are made in a manner very similar to commercial paper, with only a few extra steps. Like paper, the beginning materials are harvested from softwood trees, which produce long and even...

Chromatography is a process used in chemistry analysis. A paper chromatograph uses paper, a solvent and a solute to analyze the solubility of an element. The biggest example uses markers on paper...

We used to play with smoke bombs as kids so, I thought I would find out how to make one. Then I found that you can make it come out different colors and thought that would be really fun to...

Recycled paper is a general term used to describe materials that are processed and reused as paper products. These materials can range from paper and cardboard that has been thrown away to...

Newspapers and magazines must be kept clean and free from any contaminants if they are to be recycled, because dirty newspapers cannot be recycled. The paper must be sorted by grade or type of...

Learn how to create paper to develop blueprints with.

Mushroom hunting is a popular hobby and scientific pursuit. Success comes easier with preparation, forethought and a bit of experience. A few simple tools and supplies, along with basic knowledge...

Windmills are an alternative energy source that harness the power of the wind and turn it into electrical and mechanical forms of energy. Historically, windmills have provided energy for flour...

Originally, a mix of carbon pigmentation and wax was applied onto the backs of sheets of paper with brushes. However, modern carbon paper utilizes machines to add a consistent layer of carbon and...

A lemon clock is more of a lemon battery and a clock. It is a clock that is powered by a lemon. For those that are looking for a green alternative for small household clocks, this project might...