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Last Twenty Science Projects

Contemporary Computer, Electronics and Science Projects choosen by our editors.
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Water Electrolysis

Water Electrolysis

Electricity is created when certain chemicals react together. We use chemically- made electricity to power many machines from flashlights to a watch or sometimes a car. Yes, there are cars that run on electricity! The devices that store electricity are called batteries. Electricity can also be used to produce chemical changes.

Published: November 25th, 2008

Electrolysis of Water

Electrolysis of Water

Adding some Sulfuric Acid as electrolyte will increase conductivity of water and creation of Hydrogen and Oxigen gases.

Published: November 25th, 2008

THERMO SIPHONING AND SIMPLE BATCH HEATER

THERMO SIPHONING AND SIMPLE BATCH HEATER

This simple batch heater is popular in many southern states where freezing is not a problem. It is used to preheat well water for a domestic hot water system, however it is not very efficient because of night heat loss.

Published: November 25th, 2008

Splitting Water - Electrolysis Experiment

Splitting Water - Electrolysis Experiment

Is it possible to break water? In a sense, that is what electrolysis does. Electrolysis uses electricity to split water into its two ingredients - hydrogen and oxygen. Try it out with a battery and a couple pencils.

Published: November 25th, 2008

Solar Greenhouse

Solar Greenhouse

Visible light from the sun turns into heat when it strikes the dark interior wall of the greenhouse. This heated air tends to rise and concentrate near the top of the greenhouse.

Published: November 25th, 2008

Hidden Messages - Goldenrod Pape

Hidden Messages - Goldenrod Pape

The term goldenrod is typically used to describe a color of paper - golden yellow. Certain brands of goldenrod paper contain a special dye that turns bright red in solutions that are basic like ammonia water or washing soda. The paper turns back yellow with an acid like vinegar or lemon juice.

Published: October 5th, 2008

Pop Rocks Science

Pop Rocks Science

Pop Rocks are known as the exploding candy, and if you ate Pop Rocks as a kid, you probably remember the legend... if you eat Pop Rocks and then drink a soda, you will explode.

Published: October 5th, 2008

Magnifiers

Magnifiers

Perhaps the simplest optical instrument is the lens magnifier. Without optical aid, we cannot see things close up. The eye will simply not focus closer than about 0.25 m (unless you are nearsighted)

Published: September 20th, 2008

Static Electricity Experiment

Static Electricity Experiment

Make very, very tiny lighting anytime you want. Cut a piece off one corner of the Styrofoam tray, as the picture shows. You will have a long bent piece that looks a little like a hockey stick.

Published: September 18th, 2008

Electrolysis of Water

Electrolysis of Water

How can you perform Electrolysis of water to produce Hydrogen and Oxygen?

Published: September 17th, 2008

Make a simple electric motor

Make a simple electric motor

Making a simple electric motor is an educational activity that may also be tried as school project or science project. With this project students can learn and demonstrate conversion of electrical energy to mechanical energy.

Published: September 16th, 2008

Electric Generator

Electric Generator

Making an electric generator is a good way of learning the principles of generators. It also is an exciting science project. As a display project, you just need to make it and demonstrate its structure. As an experimental project, you need to come up with questions about the factors that may affect the rate of production of electricity.

Published: September 16th, 2008

Peanut Power

Peanut Power

A tiny peanut contains stored chemical energy. When we eat them, the stored energy is converted by our bodies so we can do work. We can also use the energy in a peanut to heat a container of water.

Published: September 15th, 2008

Splitting H2O (Water) to Make Oxygen and Hydrogen

Splitting H2O (Water) to Make Oxygen and Hydrogen

Electricity is created when certain chemicals react together. We use chemically- made electricity to power many machines from flashlights to a watch or sometimes a car. Yes, there are cars that run on electricity. The devices that store electricity are called batteries. Electricity can also be used to produce chemical changes.

Published: August 21st, 2008

Capillary Action of Water in Plants

Capillary Action of Water in Plants

In this science project, you will use food dyes to follow the path of water through a carnation. All plants, even those living in deserts, need water to survive. Plants use water to keep their roots, stems, leaves, and flowers healthy and to prevent them from drying out and wilting. The water is also used to carry dissolved nutrients throughout the plant.

Published: August 17th, 2008

Measure Your Magnetism

Measure Your Magnetism

The goal of this project is to build a sensor for measuring magnetic field strength and to use it for measuring the strength of different types of magnets.

Published: August 15th, 2008

Building a simple spectroscope

Building a simple spectroscope

A spectroscope is a device that lets us find out what things are made of. It works by taking light and splitting it up into its component colors. Different elements make different colors when they glow.

Published: July 22nd, 2008

Building the impossible kaleidoscope

Building the impossible kaleidoscope

In this section we will build a toy called the Polariscope. As you can see from the above photograph, the Polariscope creates patterns of beautiful colors, somewhat like a kaleidoscope, but by an entirely different mechanism.

Published: July 22nd, 2008

Cook hotdogs with the Sun in minutes

Cook hotdogs with the Sun in minutes

In this section we will show you how to make a powerful solar concentrator that can cook four or five hotdogs in minutes.

Published: July 22nd, 2008

Exploring invisible light

Exploring invisible light

At either end of the rainbow there is light we can not see. Below the red end is near infrared light, shorter in wavelength than the infrared we feel as heat. Above the violet end of the rainbow is near ultraviolet, longer in wavelength than the ultraviolet light that causes sunburn.

Published: July 22nd, 2008