Popular Science Projects for Middle & High School Students

Invisible Ink

The juice of a lemon or two is likely to be enough: you only need enough to dip a small paintbrush that you will use to write your secret message. buy electronic project kits online the invisible ink can be made visible just by heating it carefully over a candle for a few seconds. For something with a bit more of a high-tech flair, you can use Quinine Sulfate tablets to make an ink that will only become visible under UV light. buy science project kits in India Quinine sulfate is used for the treatment of malaria and is easy to find online.

Crystal Growing

There are many different techniques for having fun with crystals where you can buy engineering projects online. One of the most colorful methods involves dropping metal salts like calcium chloride, lead nitrate or copper sulfate into a solution of sodium silicate, but you will need to borrow those from the school's chemistry lab.If you would rather use off-the-shelf materials for your crystal growing experiments, buy electronic project kits online India you can create a warm saturated solution with a crystal solute like salt, sugar, alum or aniline. Dip a bit of string into it and wait for it to cool off. The particles in the solution will aggregate around the surface of the string and create tiny seed crystals. After a few days, you will have some gorgeous crystal formations.

Vegetable Battery

Vegetables do not have electricity Buy science project kits online, but they have electrolytes that can transport a current when sandwiched between two different metals.

Wind Energy

The rotor of a wind generator works on the same principles used by the humble pinwheel, buy electronic projects so you can buy or make pinwheels of different sizes and different numbers of blades and look for the things that make them go slower or faster.If you use an electric fan or a hairdryer, you can also stress-test the different designs and materials to see robotic kits online if some handle high speeds better than others.

Water Electrolysis

Hydrogen is another potential source of sustainable energy, and you can buy connectors online India & easily generate some by disintegrating water into its basic elements via an electrical current. buy engineering projects Take a large battery (9 Volts or above), connect wires to its terminals and dip them into salty water. You should see bubbles forming around the tips of the wires as the water breaks down into oxygen and hydrogen. Try using different materials for the electrodes (like nails, or the graphite from a pencil), and different additives for the water (like vinegar, or distilled water), in order to achieve a more efficient process and generate more bubbles.

Magnetic fields

buy engineering project kits online You can create some beautiful patterns just by placing a magnet on a white sheet of paper and sprinkling some iron filings around it. The fillings will trace the invisible lines made by the magnetic fields, and you can use this to compare the power and the characteristics of different magnets electronic projects for engineering students.