Purpose The purpose of this experiment is to see the effect that paper chromatography has on ink. Materials • Four different markers (including one black permanent marker) • Rubbing alcohol or isopropyl alcohol • Coffee filters (2) • Tall glasses or plastic cups (2) • Pencil • Ruler • Tape • Table salt • Water • Measuring cups/spoons • Clean pitcher or 2-liter bottle Procedure 1. Coffee filters usually are round, but it's easier to compare your results if the paper is rectangle. So, your first task is to cut the coffee filter into a rectangle measuring three cm by nine cm. You will need two of these strips to complete the lab.
Paper chromatography can be used in separating amino acids and anions, RNA fingerprinting, and testing histamines and antibiotics. (Infromation received from sonic.org Purpose The purpose of this experiment was to separate the dyes that these markers are composed of and show how chromatography works. Materials * Four different markers (including one black permanent marker) * Rubbing alcohol or isopropyl alcohol * Coffee filters (2) * Tall glasses or plastic cups (2) * Pencil * Ruler * Tape * Table salt * Water * Measuring cups/spoons * Clean pitcher or 2-liter bottle Procedure 1. Your first task is to cut the coffee filter into a rectangle measuring three cm by nine cm. You will need 2 for this lab.
In the center the strips, about 3 cm from one end, place a dot of the marker to be tested. The dots should be about 0.2 cm in diameter and dark enough to be clearly visible. Place about 2 cm of water in each glass. Tape the unmarked end of each strip to the center of a pencil so that the strip hangs down when the pencil is held horizontally. Carefully insert the strips into the glasses, dotted end down.
Wood that is freshly cut (also referred to as green wood) and is considered young compared to older “seasoned” wood. Green wood contains more moisture and is considered “unseasoned”. When examing green wood you may find that is light along the cut edges. Unseasoned wood may be harder to ignite and most likely produce more smoke when burned. However seasoned wood should burn quickly because of its relative dryness.
Powder Lab Paper The object of this experiment was to find the changes of each powder. The names were given but the powders were labeled A,B,C,D when inspected visually. Powder A looked like it clumped up together and really thin and tightly packed. Powder B looked soft and lightly packed. Powder C, it was white and a little bit of puffy powder essence to it and it well with small chunks.
line – A mark created by a pointed tool such as a pencil, pen, or brush moving across a surface. lithography – A printing process that does not involve engraving. Instead, a crayon or other greasy medium is used to draw on a smooth surface such as a stone or plate. Lithography is based on the fact that grease and water repel one another. medium/media (singular/plural) – The material with which an artist works such as ink, bronze, oil paint, or watercolor.
One achievement of the tang dynasty was there wood block printing. Woodblock printing is a special way of printing text images or patterns. This was widely used through out East Asia. This was known as the first method of printing. The method of wood block is prepared as a relief matrix, by cutting the white areas with knifes, chisel or sandpaper.
There are 3 major types of printer Dot Matrix, Inkjet, and Laser. The Dot matrix printer uses impact printing technique and uses tractor feed system. Dot Matrix printer can be very slow and noisy and can have paper jams. Secondly, Inkjet comes in two types of product one is called thermal bubble and second one is called Piezoelectric technology. An Inkjet printer requires special paper with wax coding and uses 4 color systems called CYMB.
In this same observation, he stacked round cylinders up to his eye level before the tower collapsed. In the first observation Z displayed his skill in working with tools. While drawing he held the paper with his left hand and used three fingers of the right hand to hold the crayon. He had fairly good control of the crayon, drawing a stick figure that he called “Daddy.” However his ability to use scissors was less developed. Z opened the scissors with both hands and had difficulty aiming them at the paper and controlling the cutting action.
¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬ Another previous experiment tested termite preference between curvilinear and rectilinear lines. Both types of shapes were drawn using the same writing utensil, and the results showed that termites preferred the curvilinear shape to the rectilinear one. Based on these findings, the shape in this experiment was a circle. Prediction: If we take a black Sharpie™ marker and draw a circle 7.5 cm in diameter on a white paper surface and cover the surface with a plastic 3M Laser Transparency™ sheet, then termites will follow the circular line longer than when the surface is not covered with a plastic 3M Laser Transparency™ sheet. Experimental Design: A sheet of white paper was taken and cut to match an 8 1/2 x 11 inch piece of 3M Laser Transparency™