Parts of A plant | Grade 5 | Unit 1 - Concept 1 - Lesson 3 - Part (1/2) | Science

شرح ساينس الصف الخامس الابتدائي لغات - الفصل الدراسي الأول
شرح ساينس خامسة ابتدائي - ترم أول
لينك تحميل الملزمة
drive.google.c...
لينك تليجرام
t.me/mrahmedel...
In This Lesson:
we will study the different plant parts that take up and transport water, nutrients and air to make the plant food:
1. Roots:
• Plant roots have hairlike features (structures) called root hairs that increase the amount of absorbed water and nutrients that the plant needs from the soil.
► Functions of the plant roots:
▌Roots fix (anchor) the plant in the soil .
▌Roots absorb (draw) water and nutrients from the soil, which are needed to make food of plants.
2. Stem:
• Water and nutrients move up the plant's stem through tubes or vessels called xylem.
• Smaller vessels of xylem connect the stem to the leaves.
► Functions of the plant stem:
▌ Stem transports water and nutrients to the rest of the plant through xylem.
▌ Stem supports leaves and flowers of the plant.
► There are many forms of stems:
Some plants have a wood stem, such as tree trunks and shrubs.
Most flowers have upright stems.
Some plants have a climb stem, such as vines (grapes).
Some stems extend underground, and they are called tubers, such as potato plant.
Some stems extend above and along the ground and they are called runners.
بالتوفيق
مستر احمد الباشا