TITLE: Plants and Seeds AUTHOR: Carolyn Sheppard, Sequoyah Elem., OK GRADE LEVEL/SUBJECT: 1-3, science OVERVIEW: For many students science has no real meaning if material is covered by the read and discuss method. A hands on approach is a wonderful way to teach a concept. PURPOSE: Flowering plants produce seeds encased in fruit. Three kinds of fruits are berries, drupes, and pomes. Oranges, grapes, and tomatoes are berries. Their seeds are embedded in the flesh of the fruit. Peaches and plums are drupes. Drupes have one seed enclosed in a hard case surrounded by flesh. Apples and pears are pomes. Pomes have several seeds enclosed in a core surrounded by flesh. OBJECTIVES: Different kinds of plants form different amounts of seeds. Some plants form only a few seeds, while others form many seeds. The fruit is the part of a flowering plant that contains seeds. RESOURCES/MATERIALS: oranges, tomatoes, peaches, plums, pears, apples, sturdy plastic knives, pieces of plastic ACTIVITIES AND PROCEDURES: 1. Demonstration - show your students a one-half piece of each of the fruits. Help them observe and identify the placement of the seeds in each piece of fruit. Then have students group the fruits according to how the seeds are enclosed. You may wish to introduce the words berry, drupe, and pome to your students. If so, explain that many fruits commonly called berries are not berries according to the scientific definition. 2. Exploration - Give each group three pieces of fruit (one berry, one drupe, and one pome), a plastic knife, and a piece of plastic. It may be helpful to precut the fruit for your students. Have students cut their fruit apart on the plastic, count the number of seeds in each piece, and record their observations on a worksheet.
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