Some existing knowledge is that when all of the solutions are mixed together in the test tube they will separate into three layers one consisting of the strawberry puree (lysis solution), another is the DNA precipitate, and the last is the actual DNA. (“How to Extract DNA from Strawberries”). The prediction is that the DNA will look like twisted strands of string when looked at under a microscope. Materials and Methods There were many steps taken to perform this experiment. The materials used were: * Strawberry * Plastic Bag * Cell Lysis Solution * DNA Precipitate Solution (Cold) * Test Tubes * Graduated Cups and Cylinder * Funnel * Coffee Filter * Wood Splint * Slide and Coverslip * Microscope The Plastic bags were filled with strawberries.
Place about one quarter of a ripe banana in a small resealable plastic bag. Seal the bag, and use your fingers to squash the banana until no visible chunks remain. 2. Use a graduated cylinder to measure 10 mL of the 0.9% NaCl solution, and add it to the bag. Mix thoroughly.
Purpose and Hypothesis The pupose of this project is to investigate how the presence of seed crystals changes the growth rate of rock candy. My hypothesis is that seeding the string will affect the growth rate of sugar crystals. Materials 1 quart saucepan 1 glass container with a lid 2 cups of regular table sugar 3/4 measuring cup a few drops of food coloring 1/4 teaspoon of flavoring (such as peppermint, lemon, cherry or strawberry extract)optional 1 thin wooden stick or string ruler tape or plastic wrap Experimental procedure 1.measure 3/4 of water and pour it in sauce pan. Heat on medium high until it comes to a boil. 2.pour 2 cups of sugar in sauce pan and stir.the solution should look cloudy at first then i will become clear .then keep stirring for 2 minutes 3.After the sugar is dissolved pour the solution into the jar.
Experiment & Observation I gathered together my items; distilled water, salt, ruler, scissors, stapler pencil, tape, 16 toothpicks, Kool-Aid drink mix strawberry and grape, set of McCormick food coloring red, yellow, green and blue, small bag of M&M candy, plastic beaker 50 mL, petri dish 60mm, well-plate 24, FDC blue dye #1 0.5 mL vial, FDC blue dye #2 0.5 mL vial FDC red dye #3 0.5 mL vial, FDC red dye #40 0.5 mL vial, FDC yellow dye #5 0.5 mL vial, FDC yellow dye #6 0.5 mL vial, unknown 0.5 mL vial, 3 filter paper chrom 14x7 cm. I first made a solvent using a 50 mL beaker with warm room temperature distilled water and a pinch of salt. I made sure the salt was completely dissolved and set the solvent aside. I took out two of the Chromatography filter paper sheets 14x7 and with a pencil very lightly drew a horizontal line 1 cm from the bottom of both sheet. Then horizontally on the line I just drew I marked off 9 spaces 1.5 cm apart.
Add color indicator 4. Obtain a burette and fill it with NaOH 5. Titrate the 10 mL with NaOH until it turns pink 6. Weigh a dry funnel with a filter paper and record the weight 7. Obtain an Erlenmeyer flask that has a vacuum opening and attach the vacuum tube to it 8.
Measure 1/2 cup (c) milk and 1/2 c whipping cream; put into a small Zip-lock baggie. 2. Add 1/4 tsp. vanilla to the milk/cream mixture. 3.
Cut the graph paper so that there are exactly 40 eggs. 7. Put the paper with the 40 eggs into the beaker (eggs-side down). After 3 minutes, use a pair of forceps to gently remove the paper, making sure that all the egg cysts have washed off into the water. 8.
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.
If a substance contains proteins then when Biuret reagent is added the substance will change Easter egg colors (lavender, yellow, and green). Materials: 8 test tubes Test tube rack Test tube holder Glass stirring rod Sharpie marker Hot water bath Iodine solution Brown paper bag Biuret Reagent Benedicts solution 20 ml each: 1. Honey solution 2. Egg white and water solution 3. Gelatin and water solution 4.
» 2 Bunsen burners »2 tripods » 2 wire gauzes » 2 × 150 mL beakers » 2 × 250 mL beakers for 70°C and 80°C water baths » 5 Styrofoam cups for unheated water baths » 8 thermometers 0–100°C » 16 test tubes in a rack » 10 mL measuring cylinder » junket tablet » 50 mL milk » Crushed ice » dropper » plastic spoon » marking pen » Distilled water Note: Thermostatically controlled water baths may be used if available. Method 1 Prepare half-filled water baths by mixing different amounts of tap water, boiling water and ice in the styrofoam beakers to give one of each temperature: 10°C, 20°C, 30°C, 40°C and 50°C. Maintain the 70°C and 80°C temperatures by placing water in the beakers on the Bunsen burners and adjusting with cold water as necessary. Alternatively, use thermostatically controlled water baths for the 30°C, 40°C, 50°C, 60°C, 70°C and 80°C experiments. Place thermometers in each water bath to record the actual temperature in each bath.