Skip to main content

Kids Projects at Home

Simple Kids Crafts is a video blog dedicated to reviving the old art of handicrafts for people of all ages. How do oil spills affect aquatic plants? A Miniature Solar Panel Fire Water Balloon Make Clouds in a Bottle Secret Messages Make a Rocket Make a Hovercraft Make an Anemometer Make a Sundial Make a Radio Make an Electroscope Make a Stethoscope Make a Telescope Make a Periscope Make a Camera Bending a stream of water with a comb Lighting a bulb without electricity Simple Motor Cotton Ball Rocks? Salt-Absorbing Art and Science Color Changing Glue Art Baking Soda Clay Oil Sun Catcher Grow a Pineapple Plant! Bead Bowls Wow, what an Air-Gun Funny Diver ! Water boils without fire Ice with Boiling Water Water that boils instantly Water boils in a Paper Pot Soap-driven Boat Pulse Moves Pin Pretty Garden—without Plants Picture made by Fire Magic Pictures Dancing Doll Smoke Goes Down The Dancing Coupl The Umbrella Dance Magic Butterfly Colorful
1 comment

The Magic of Metal Corrosion

Objectives/Goals 

Analyze the corrosive behavior between metal fully submerged in liquid versus metal partially submerged and determine whether corrosion reacts similarly when using three types of liquid: An acetic acid, a sodium bicarbonate solution, and salt water. I hypothesized that metals fully submerged will have more corrosion and that the metals will react similarly when tested in different liquid solutions, whether partially or fully submerged. 

Methods/Materials 

Six-inch strips of aluminum, brass, copper, and iron were cut into two-inch pieces and placed in three different types of liquid: An acetic acid consisting of one cup of full strength white vinegar; a sodium bicarbonate solution consisting of two teaspoons of baking soda dissolved in one cup of distilled water; and salt water produced by dissolving one cup of distilled water with 8 grams of sea salt. Each strip was divided into a 3x5mm hand drawn grid to track and measure the rate of corrosion. Two sets of twelve 18-ounce cups were filled with one cup of solution and labeled. One metal strip was suspended from the top of each cup and submerged; 12 fully and 12 half way. Photographs were taken regularly and observations were logged every two days for 35 days.

 Results

 The fully submerged samples showed corrosion on 100% of the surface area. The brass and copper were completely covered with tarnish caused by the sodium bicarbonate. The iron sample in sodium bicarbonate showed no reaction, and the aluminum sample in vinegar had minimal corrosion. The partially submerged samples had over 65% surface corrosion on all samples except for iron in sodium bicarbonate, which had no reaction. The brass and iron in vinegar were completely corroded above the water line and displayed different chemical reactions than those fully submerged. The results also showed that the partial samples rusted faster, however the parts above the water line rusted more slowly. 

Conclusions/Discussion 

The hypothesis stated that metals, when fully submerged in liquid, will have more corrosion than those partially submerged. While the hypothesis proved to be true, the metal strips that were partially submerged did corrode faster and their corrosion surface area averaged 65.6%, except for the iron submerged in sodium bicarbonate. While the hypothesis was supported, the partially submerged metals proved to have interesting and in some cases magical results.
Labels:

Comments

Post a Comment

Popular posts from this blog

Make a Rocket

Rockets are fascinating!  They soar into the sky and help us know many secrets. Are you fascinated by rockets? If your answer is yes, you would be interested in this activity. The rockets that you can make safely will not go very far, perhaps much less then the rockets we enjoy on the Deepawali day. But then you will agree, the fun and excitement to make your own rocket has a totally different dimension.  The basic principle of rocketry is Newton's Third Law of Motion, that is, "For every action there is an equal an opposite reaction".  A big rocket uses chemicals to release an intense stream of gas out its tail end that propels it upwards.  A fuel is used in a rocket to produce this gas through some chemical reaction. The rocket fuel is sometimes liquid, and sometimes solid.  But, in all cases, a gas is ejected from the tail of the rocket. The first kind of rocket that we can make is propelled by a very safe gas - carbon dioxide.  The fuel it uses is
Post a Comment
Read more

Make a Periscope

Are you familiar with the word "submarine"? A submarine is a kind of boat that moves underwater. Submarines are common crafts for the Naval forces of any country. But, while moving underwater, submarines need to know where they are with respect to other objects on the surface of water. The device they use to do this is called a periscope.  Periscopes are optical instruments that can afford submariners a limited though vital visual picture outside their windowless hull. Traditionally, periscopes offered the submerged submarine its only glimpse of the outside world. Classic English war movies have also made them the submarine's most familiar feature.  For most of us, who are unlikely to come across submarines in real life, a periscope can make it possible to see round corners and over the heads of crowds during processions or at sporting occasions. In a periscope, two mirrors are arranged at 45 degrees to each other. One mirror captures the rays of light from t
Post a Comment
Read more

Chemistry Investigatory Projects for Class 12 CBSE

Below is the List of Awesome Chemistry Projects for your Science Fair and Exhibition Analysis of Honey The Metronome of a Chemical Reaction The Magic of Metal Corrosion Agent Sodium Chloride Strikes Again Steel and Acid Rain How to Increase the Speed of a Reaction Boiling Point Fire Burning Wet Heat Desalinate Sea Water How does caffeine influence soybean plant growth? Cotton Ball Rocks? Salt-Absorbing Art and Science Color Changing Glue Art Baking Soda Clay Oil Sun Catcher
Post a Comment
Read more