Agricultural Science Essay

Materials Graduated cylinder 2 marbles Liquids to test much(prenominal) as water, corn syrup, canola oil, motor oil Masking taping 1 cm ruler Stopwatch that is accurate to 0.1 or 0.01 secondsSAFETY keep an eye on See Texas Science Safety Manual for lab and investigation guidelines http//www.tenet.edu/teks/ apprehension/safety/safety_manual.htmlEngagement Place a wooden ramp on a stack of books. Challenge students to predict which of three liquids (syrup, water, and motor oil) bequeath r separately the bottom of the ramp first. practice one drop of each liquid. Have students write their predictions and observations in their science journals. Ask student to diagnose which property of matter is best represented by this demonstration.Explore1. conform to a graduated cylinder with one of the liquids (water, corn syrup, canola oil or motor oil), up to about 5 cm from the top. 2. Mark with tape a convenient starting line heighten about 2 cm below the surface of the liquid (which wi ll allow the sphere to appreciation terminal velocity before you begin making measurements). You can mathematical function either the top or the bottom of the tape, but use the like points for each measurement you make when you drop the spheres. 3. Mark an ending point about 5 cm from the bottom. 4. Measure the distance between the starting and ending points, and enter the answer in the data table as Fall distance. 5. Drop the sphere into the liquid and start measuring sentence when the sphere reaches the first masking tape line. Stop measuring while when the sphere passes the second piece of tape. Repeat the time measurements for a good of 5 trials. 6. Clean the graduated cylinder and repeat procedure with different liquids. 7. Complete the data table by averaging the times for each substance. Use this time when calculating the speed of the sphere.