A Tasty Core Sample

You will need: transparent straws ( 3 straws for every 2 students) toothpicks rye bread white bread whole wheat bread raisins peanut butter jelly Please have an adult's supervision for this activity.

Students can see the core sample clearly if transparent straws are used. Make one sandwich for every 2 students. Make the sandwich in the following order: layer 1 slice of white bread layer 2 peanut butter mixed with raisins layer 3 slice of whole wheat bread layer 4 jelly layer 5 slice of rye bread Have the first student place his/her thumbs in the middle of the sandwich make it arch upward. Have the other student use the transparent straw to take the core sample. Carefully insert the straw and then slowly withdraw it from the sandwich. Take samples in the middle and two end points of the sandwich. Students will be forming a anticline or upward pointing arch rock formation. Record their observations. Have the first student place his/her thumbs in the middle of the sandwich make it arch downward. Have the other student use the transparent straw to take the core sample. Carefully insert the straw and then slowly withdraw it from the sandwich. Take samples in the middle and two end points of the sandwich. Students will be forming a syncline or downward pointing arch rock formation. Record their observations. Have the students cut the sandwich in half. Taking the long toothpick attach one half the other part of the sandwich in any fashion the students like. Take samples again. The students will be forming a fault. Record their observations.

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