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Showing posts with the label Does Acid Make Steel Rust Faster

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 ...
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Steel and Acid Rain

Objectives/Goals We in 8th grade have just started studying acids and pH. I wanted to utilize my limited after-school time to do experiments involving acids and learn practical aspects of effect of acid in daily living. During my research, I came to know that acid rain has an enormous economic impact due to its effect on rusting of metals. The purpose of my science project was to use simple, inexpensive and non-hazardous household materials to study the relationship between acid and rust formation.  My Hypothesis were:  1) Model of acid rain water will rust steel wool faster than model of normal rainwater.  2) The temperature will rise when steel wool is in contact with the acids due to the oxidation reaction. 3) The rise in temperature will be higher when steel wool is subjected to more acidic rainwater as higher H+ ion availability will likely speed up the iron oxidation process and hence the rate of rusting. Independent variables were Time & p...
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Unleash the Power of the Pinwheel

Objectives/Goals The objective is to determine if the orientation to the wind affects the amount of power generated by a wind turbine. Methods/Materials A wind turbine was constructed using an empty oatmeal canister weighted with heavy bolts to keep it grounded, a wooden skewer, a homemade rotor, two feet of thread, one end secured to the aft shaft and the other to five #1 size paper clips. Using a hair drier, wind was directed toward the rotor at the following angles; 0 deg., 45 deg., 90 deg., 135 deg., and 180 deg. The time to raise the load of paper clips to the base of the shaft was calculated in seconds, using a stopwatch, and the distance the paper clips were raised at each position was measured in inches, using a tape measure, but then converted into meters. After conducting three trials, times and distances were averaged to determine which orientaion to the wind source created the most power. Results After testing all five angles three times, I#ve found ...
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Fooling Your Brain with a Mirror

Aim: To prove that what we see is often affected by what we expect to see with the help of the mirror image experiment. Materials required: 1. Mirrors – 2 in number, square in shape, 12 inches (30 cm) a side, could be either made out of plastic or glass. 2. Epoxy glue and duct tapes. 3. Wooden dowels – 2 in number with diameter as 1 inch (2.5 cm) and 12 inches (30 cm) long. Procedure: 1.      Stick the mirrors together by pasting their backs. If you have a glass mirror then for safety, tape their edges using the duct tapes to seal the sharp edges. Take the two wooden dowels and paste them right in the centre of the mirrors vertically. 2.      Hold the dowels with each hand and as you look at one side of the mirror move the hand which is on the other side. What do you actually see? What happens? Your brain expects the image in the mirror to move as it is fooled to believe that the image it sees is actually your othe...
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The Mathematics of Sympathetic Vibrations

Objectives/Goals  Which notes on a piano can induce sympathetic vibrations on an open string? Mathematical relationships between test note and open string frequencies will be used to predict which notes cause sympathetic vibrations. I predict the three test notes in my sample that are harmonics of the open string will resonate the longest. Methods/Materials  Materials used were: a piano, a stopwatch, a frequency chart, and a helper. I depressed a piano key, the damper lifted and the string was "open," or free to vibrate. I played all the notes in one octave higher than the open string. My helper timed the durations of the tone coming from the open string. I averaged and graphed the results.  Results  The thirteen test keys in each sample caused the open string to resonate. Seven test keys caused brief resonance; the vibration inside the sound box caused the open strings to produce a tone.  Three test keys produced tones of intermedi...
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