I Wonder About My Blood, P

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B' Divide studentsinto groups' Give eachgroup a piece of plastic tubing and red tissue paper' Ask studentsto tear the tissueinto tiny pieces. Have studentswad the tissueinto tiny balls to representblood. Explain that the t bing will represent the veins and arteries. Have studentspttt the tissueinto the tubing to show hor.,u,blood travels.Have students experiment with the t{ing running horizontally and vertically. Then ask studentsto blorv into the tube to force the "blood" to move,just like the heart does. c' Cut a large hole in one piece of tubing. Blow tissuethrough the tube and seeif anv comesout' Dernonstratethat if studentsscrapea knee,the vein is broken u"a UfooJ'^' comesout. Show how the body heals its.elfvery quickly by taping a piece of paper or,,er the hole. Blow the tissuethroueh the vein asain.

Assessment Evaluatephonernicawarenessprogressby readingstudents' stories.Use Attachment I to assessbiood circulation experiments.

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@McGee-Keiser Academic Enrichment programs

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