Third Grade
Worksheets
Plant Life Cycles
Caption: Flowers and seeds of a carrot plant. A carrot is a biennial plant and only flowers every two years. In the first year the plant produces the edible root and a leafy top. If a carrot plant is left in the ground for another year, it flowers and makes seeds.
Plants, like all living things, have life cycles. All living things grow and change throughout their life cycles. Almost every plant you see outside started from a seed. Each seed contains everything needed to grow a new plant. The seeds germinate, or sprout. The small new plant is called a seedling. The seedlings grow. They make flowers. The flowers make seeds for new plants. Then the plant dies.
Plants are classified by how long their life cycle takes. Annual plants have a life cycle of just one year. They sprout from seed, grow, make seeds, and die in one growing season. Some plants that are annuals are tomatoes, marigolds, and petunias.
