Four Parts of a Green Plant and the Functions of each Part

Hawthorne, Sarah F. Coles Elem. School

Objectives The learner will learn four parts of a green plant and the functions of each part. Apparatus Needed An apple; bag of tea; two stalks of celery (a stalk of raw celery and a stalk of celery in colored water); an onion in a cup/glass of water; one sweet potato in a cup/glass of water; four posters (each poster should show pictures or drawings of a part of the green plant.......roots, stems, leaves, and the flower); several packages of different green plant seeds; different kinds of green plants ( with and without flowers). Optional Four milk cartons (soil should be in each milk carton); four 5x7
cards with the name of a part of a green plant on each card.

Recommended Strategy Display the following foods on a table: an apple, a bag of tea, an onion (in a cup or glass of water), and a stalk of raw celery. Have the students identify the foods on the table. Discuss what the foods have in common. Try to come to a general conclusion that the foods on the table come from green plants. Display a live green plant and ask students to identify the parts of the plant. As the students identify the roots, stems, leaves, and flowers, have another student point out the part that was identified. For each student that correctly identifies the roots, stems,leaves, and the flower, give him/her a milk carton and a package of green plant seeds. After identifying the part of a green plant, have the students give the order in which the plant will grow starting with the seeds. As the students determine the order in which the plant will grow, display posters with pictures of each part of the green plant. Discuss the functions of each part of the green plant: roots a) take in water from the soil; b) take in minerals; c) store excess food; d) transport water and food to other parts of the plant; and e) hold or anchor the plant in the soil. stems a) support the plant; b) expose the leave to sunlight; c) transport food and water to other parts of the plant; and d) sometimes, photosynthesis (food) is made in the stem. leaves a) take in carbon dioxide; b) release oxygen (the exchange of gases.....taking carbon dioxide into the leaves and releasing oxygen out of the leaf...... is referred to as respiration); c) chlorophyll; d) photosynthesis; and e) take in energy from the sun. flower a) sexual reproduction. Optional
1. Have the four students that were given milk cartons with soil and seeds plant
their green plant seeds. The plants will remain in the classroom for class
2. Play the game "Plant Charades". Divide the class into four groups. Give each group
a card with the name of a part of the green plant written on it. Each group will
have 5 minutes to suggest ways to demonstrate the part of the plant without
talking. The winning group will be the group that guesses the most parts of the
3. Use the celery in colored water to demonstrate how water and minerals travel
through plants.

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