Grouping of Plants

Science, Grade 3

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bark sapwood heartwood cambium inner bark Many plants have leaves that look similar while others have totally different kind of leaves. Plant and tree leaves may be different in size, shape, and color. Trees can be placed into groups according to whether or not they lose their leaves in the fall. Deciduous trees are trees that lose their leaves in the fall. A maple tree is a deciduous tree. Coniferous trees do not lose their leaves in the fall. Coniferous trees have leaves that look like needles. A pine tree is an example of a coniferous tree. tree trunk stem Other ways to group plants A variety of plants and trees have long roots that grow deep into the ground, while others have short roots that grow very shallow. Plants are often put into groups by the type of parts or structures they have. They can be grouped according to their types of leaves, stems, flowers, roots, and even seeds. Plants and trees also have various stems. For example, the stem of most trees is thick, strong, and has bark protecting it; the stem of a tulip is thin, green, and fragile. Plants and trees can also be put into groups depending on whether or not they produce cones. Flowering plants and trees produce flowers. Coniferous trees do not produce flowers, they produce cones instead. Plants can also be put into groups according to how they grow. For instance, some plants may grow low to the ground while other kinds of flowering plants may grow high above the ground. Plants can also be put into groups according to how long they live. Some flowering plants only live one year while others die during the fall and then in the spring they grow again. Cone Variety Leaf Variety Maple Oak Pine (needles) White Ash Sycamore Deciduous flower cone Coniferous shallow roots deep roots © Copyright NewPath Learning. All Rights Reserved. 94-4303 Grouping of Plants www.newpathlearning.com
Describe other ways to group plants. _____________________________ _____________________________ Cone Variety Leaf Variety Key Vocabulary Terms bark Oak leaf cone Pine needles coniferous stem deciduous shallow roots deep roots Sycamore leaf flower tree trunk flowering plants White ash leaf Maple leaf How are plants grouped? __________________________________________ __________________________________________ __________________________________________ How are leaves alike? __________________________________________ __________________________________________ How are leaves different? __________________________________________ __________________________________________ What is the difference between a deciduous tree and a coniferous tree? ___________________________________ ________________________________ Which type of tree produces cones? ____________________________ Describe the types of stems that plants and trees have. ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ © Copyright NewPath Learning. All Rights Reserved. 94-4303 www.newpathlearning.com Grouping of Plants \|xiBAHBDy01717sz\