1. Core Sampling By Suzanne M. Anderson Worthington Elementary School 1.Have students bring in as many of the food items on the materials list as possible. You will need enough materials for pairs of students. 2.Construct the “sedimentary rock” sandwiches. Cereal within the layers can represent large particles or fossils. 3.Have students write their names on the plastic bags. Place the sandwiches inside the bags and store the sandwiches in a refrigerator until the next day. (The bread will harden a little and the layers will not slide around as much if the sandwiches are refrigerated.) 4.Next day, have students make core samples using the noodle as coring devices. Use the noodle to cut through the sandwich. The sandwich pushed up inside the hollow noodle is called a “core sample.” To get the sandwich out of the noodle, break the noodle gently. (You could use straws to gently “plunge” the sandwich out of the noodle.) 5.On a sheet of paper have the students draw a picture of the “core sample.” Color the different layers according to a predetermined legend (brown for peanut butter, red for jelly, etc.), and label them. Inform students that they have created a “strip log”—a useful tool made by geologists to model rock units. 6.Have students compare strip logs. Can they interpret the sequences of their classmates’ sandwichs? 1.Have students bring in as many of the food items on the materials list as possible. You will need enough materials for pairs of students. 2.Construct the “sedimentary rock” sandwiches. Cereal within the layers can represent large particles or fossils. 3.Have students write their names on the plastic bags. Place the sandwiches inside the bags and store the sandwiches in a refrigerator until the next day. (The bread will harden a little and the layers will not slide around as much if the sandwiches are refrigerated.) 4.Next day, have students make core samples using the noodle as coring devices. Use the noodle to cut through the sandwich. The sandwich pushed up inside the hollow noodle is called a “core sample.” To get the sandwich out of the noodle, break the noodle gently. (You could use straws to gently “plunge” the sandwich out of the noodle.) 5.On a sheet of paper have the students draw a picture of the “core sample.” Color the different layers according to a predetermined legend (brown for peanut butter, red for jelly, etc.), and label them. Inform students that they have created a “strip log”—a useful tool made by geologists to model rock units. 6.Have students compare strip logs. Can they interpret the sequences of their classmates’ sandwichs? Two class periods, 30-45 minutes long (including discussion). Evaluation can be based on teacher observation of students’ performance and cooperation, evaluating the drawings, and both written and oral questions. Student journals including all work, legends, and the interpretation of classmates “cores” are helpful. None listed Infer from formulating a model that studying cores is one way to interpret Earth’s history Model core sampling using a pasta noodle Model a sedimentary rock formation Infer from formulating a model that studying cores is one way to interpret Earth’s history Model core sampling using a pasta noodle Model a sedimentary rock formation Different breads (white, wheat, banana nut, etc. Various spreads (peanut butter, jams, jellies, fresh fruit, etc.) Cereal (Rice Krispies, Cheerios, etc. Plastic Bags Plastic knives Paper towels Permanent markers (to mark bags) Manicotti or other large tube-shaped noodles Paper Colored pencils Straws (optional) Refrigerator Different breads (white, wheat, banana nut, etc. Various spreads (peanut butter, jams, jellies, fresh fruit, etc.) Cereal (Rice Krispies, Cheerios, etc. Plastic Bags Plastic knives Paper towels Permanent markers (to mark bags) Manicotti or other large tube-shaped noodles Paper Colored pencils Straws (optional) Refrigerator None listed Objective Materials and Equipment Materials and Equipment Time Procedures Assessment Further Challenges Further Challenges Overview Teaching Suggestions Safety Note