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Unit 7 Lesson 1 How Can We Classify Plants? Copyright © Houghton Mifflin Harcourt Publishing Company Unit 7 Lesson 1 How Can We Classify Plants? Florida Benchmark • SC.3.L.15.2 Classify flowering and non-flowering plants into major groups such as those that produce seeds, or those like ferns and mosses that produce spores, according to their physical characteristics. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 7 Lesson 1 How Can We Classify Plants? Sorting Plants • You can group, or classify, plants in different ways. • One way to group them is by type. • Another way to group them is by how their parts are similar. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 7 Lesson 1 How Can We Classify Plants? Kinds of Plants • There are many kinds of plants. Vines, trees, and shrubs are three kinds. • Vines have long, thin stems. • Trees are tall. They have thick, woody stems. Each tree has one main stem. • Shrubs are short. They have many woody stems. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 7 Lesson 1 How Can We Classify Plants? Plant Parts • One part you can use to classify a plant is its leaves. • Leaves have different shapes, colors, and sizes. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 7 Lesson 1 How Can We Classify Plants? Blooming! • Plants that make flowers are classified as flowering plants. • Flowering plants come in many sizes, colors, and shapes. • Flowering plants are the largest plant group. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 7 Lesson 1 How Can We Classify Plants? Seeds • Flowers make fruits with seeds. Oranges and strawberries are examples of fruits with seeds. • Each seed has a new plant inside that can grow into an adult plant. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 7 Lesson 1 How Can We Classify Plants? Cones! • Non-flowering plants are plants that do not make flowers. • Many non-flowering plants make seeds. • Pine trees are non-flowering plants. They make seeds in cones. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 7 Lesson 1 How Can We Classify Plants? Even More! • Mosses are small, soft plants. Ferns are larger plants with leaves called fronds. • Mosses and ferns are non-flowering plants that reproduce by spores. • Spores are plant parts that can grow into new plants. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 7 Lesson 1 How Can We Classify Plants? Spores • Spores are released from the stalks of some mosses. • In ferns, spores form in small groups on the underside of the fronds. • Each group contains hundreds of spores. Copyright © Houghton Mifflin Harcourt Publishing Company