Science Vocabulary Unit 2- The Plant Kingdom

Non-Flowering Plants-Plantas sin Flores

Flowering Plants-Plantas con Flores

Mosses-Musgos

Ferns-Helechos

Spores-Esporas

Stem-Tallo

Leaves-Hojas

Capsule-Cápsula

Rhizoids-Raicillas

Rhizome-Rizoma

Fronds-Frondas

Sori-Soros

Gymnosperms-Gimnospermas

Perennials-(Hoja) Perenne

Cone-Piña

Needles-Agujas

Angiosperms-Angiospermas

Leaf-Hoja

Flower-Flor

Fruit-Fruta

Seed-Semilla

Deciduous-Hojas de Caduca

There are more than 250,000 different species of plants on Earth.  Plants can be classified into two main groups: Non-Flowering and Flowering.

Non-flowering plants do not produce flowers, seeds or fruit.  They reproduce with spores.  There are two main groups of non-flowering plants: mosses and ferns.

Mosses are very small plants with tiny stem, leaf and root structures called rhizoids.  These rhizoids support the plant but do not take in water.  Moss spores are produced in a capsule at the end of a longfilament.

Ferns are larger than mosses.  They have a thick stem called a rhizome.  The roots and leaves grow from the rhizome.  Ferns have large leaves called fronds.  Fern spores grow on the underside of the leaves and are called sori.

Flowering plants produce flowers and seeds in order to reproduce.  There are two main groups:gymnosperms and angiosperms.

Gymnosperms have small simple flowers.  They don´t produce fruit and their seeds are grouped together in cones.  Most are perennials which means they keep their leaves all year. They are also called evergreens.  Some have long this leaves like needles like pine trees.

Angiosperms have large beautiful flowers.  They produce fruit with seeds inside.  They form the largest plant group including trees, shrubs and grasses.  They can be deciduous or perennial.  Deciduous plants lose their leaves in autumn.