Looking for a Tutor Near You?

Post Learning Requirement »
x

Choose Country Code

x

Direction

x

Ask a Question

x

x
x
For better view click here
x
Hire a Tutor
DISCOVER

Notes On Science

Loading...

Published in: Science
2,670 Views

The basic knowledge of Flowering plants (for Class 5/6)

Aritra D / Kolkata

20 years of teaching experience

Qualification: M.A (Rabindra Bharati University - [RBU], Kolkata - 2005)

Teaches: English, Mathematics, Physics, BA Tuition, LIC, NDA, SSB Exam, SSC Exams, NET, SET, TET, UGC Net

Contact this Tutor
  1. CHAPTER -1 LIVING THINGS - PLANTS Classification of Plants Plants are most important for existence of life on earth. The Earth is known as the green planet because of plants. Plants are essential for all living beings. Plants provide oxygen, food and nourishment, keep temperatures in control, preserve the water resources and do much more. Plants beautify the environment which make our world an attractive place to live in. With a large population engaged in agricultural activities plants are our biggest source of food. We grow tea, coffee, fruits, vegetables, flowers and so many other types of foods. Learners, it is important to understand plant science to enable you to explore the scientific progresses in agriculture, and in environmental and natural habitat conservation efforts. Let us begin the exploration with the classification of plants. Activity 1: In groups: Go around your school and your locality and look at the different plants around you. You will observe a variety of them. They are of different sizes, leaves, flowers, fruits and colours. Now, discuss in groups why most plants have green leaves. What happens to leaves when they change colour from green to brown? You will observe that when plants can't make their food they start to decay and die. You can try an experiment by keeping a plant enclosed in a jar without water and sun. The leaves turn brown and the plant dies. The green leaves serve as the 'food factories' of the plants. Plants also absorbe carbon dioxide from the air and provide the life-saving oxygen. Animals breathe the oxygen and exhale carbon dioxide. You may have heard of the danger of Global Warming because of increase of carbon dioxide in the air. Plants help to control that. Therefore, protecting green plants is protecting living things. To learn further let us recall the parts of a plant that we studied about in earlier classes. Parts of Plants
  2. Roots - The roots support the plant and help in the absorption of water and mineral salts from the soil. Stem - It holds the plant in position and serves as the channel through which water and mineral salts are transported Branches - Branches of the stem from main stem supports the plant. Leaves - Leaves absorb carbon dioxide, water and minerals and make food for plants. Flowers - They produce seeds for the plant. Fruits - In some plants flowers make fruits and fruits contain seeds. Flower Fruit Stem Leer Branch Ground leve Roots Soil Parts of a lant Figure 1: Parts of plants Activity 2: Look at the parts of plant in the above picture. Identify the part of the plant which help in making their food. Identify the parts of plant which help in the production of seeds. Grouping plants with common characteristics Different plants have different characteristics. Plants need different growing conditions. The reproduction processes of plants is also different from type to type. We classify the plants with some of these characteristics. There are two main types of grouping of plants: 1. Green plants and non-green plants. 2. Flowering and non-flowering plants.
  3. Figure 2: Green plants Properties of Green Plants Green plants have green leaves, branches or stems. Green plants make their own food. These also make food for other animals. Leaves contain a green substance called Chlorophyll. Chlorophyll helps in making food for the plant. Examples of green plants are: Maize, Coffee, Grass, Banana etc. Properties of Non-Green Plants • The leaves and stems are not green but white, brown, grey etc. The leaves in the plants do not contain chlorophyll. • Non-green plants can't make their own food. • Non-green plants survive on the food absorbed on the things on which they grow. • Non-green plants include fungi, bacteria etc. Properties of Flowering Plants • These plants produce flowers. • Flowers are part of the reproductive system of plants. Different flowering plants grow in different conditions. E.g. Roses grow better in special conditions in Green Houses. Characteristics of Flowers: Flowers have different shapes, colours, sizes and fragrances. Flowers produce seeds. Seeds germinate into new plants. • In some flowering plants, flowers mature into fruits. Seeds are found in the fruits. Flowers of different plants grow in different seasons and different climates. E.g. Jacaranda flowers bloom in hot dry season.
  4. Importance of Flowers: • Flower are a source of beauty. Flowers of some plants are eaten as vegetable. Some flowers are used in making fragrances. Some flowers are used for medicinal value. Seeds of some flowers like that of Sunflower can be used for making edible vegetable oils. Figure 3: A flowering plant
  5. Kenya is top most producers of flowers in the world. Some of the flowering plants in Kenya are Rose, Carnation, and Lily. Some important flowers exported to other countries are given below. Some plants in Kenya have great medicinal properties, like: Aloe Vera Activity 3: Take pictures of some flowering and non-flowering plants. In groups discuss their characteristics. Activity 4: In group: Teachers to organise excursion to a green house. Properties of Non-Flowering Plants Properties of Non-Flowering Plants: These plants don't produce flowers. • Many non-flowering plants do not have seeds. Tiny substances called spores germinate and grow as new plant.
  6. Some non-flowering plants like sugar-cane produce hard seeds. Some non-flowering plants, such as cacti, have green thorny stems that help in the manufacture of food for the plant. Examples of non-flowering plants are - Algae, Fungi, Mosses, Cacti etc. Figure 4: Different types of green, non-green and non-flowering plants. Harmful Plants What are harmful plants? Harmful plants are those plants which have poisonous leaves, flowers or fruits. These are harmful for both humans and other animals. Some non-poisonous plants are also harmful as they can cause bruises and itches on our bodies, e.g. thorn apple. Activity 5: The learners to search the internet and make a list of harmful plants. (https://www.youtube.com/watch?v=3wSSKSBe118)
  7. Figure 5a: Poisonous Oak. Figure 5c: Dump Canes. Ways to Handle Harmful Plants Figure 5b: Smack Talking. Figure 5d: Rosary Pea. Store labelled bulbs and seeds safely away from learners, pets and food-storage areas. Strictly avoid confusing with edibles. Use protective gloves and clothing when handling plants that may be irritating to the skin. Wash clothes afterwards. Discard plant leaves and flowers in a way that children and pets cannot go near them. Do not eat plants or mushrooms collected outdoors without verifying whether they are safe for consumption. Assessments Answer Yes or No Question 1. Green leaves grow on green plants 2. Green plants do not make their food 3. Green plants need air, water and soil 4. Roots of green plants absorb water from air No Yes
  8. 5. Flowers attract insects 6. Leaves absorb carbon dioxide from air 7. Flowers are used for the following: i. Making medicine ii. Making fragrance 8. Poisonous plants don't harm animals Number in proper order a. b. c. d. e. Plants grow leaves Adults plants grow fruits and seeds Seeds Germinate Roots start growing from the seed Flowers grow on plants Answer the Questions a. Classify the plants in two major categories. b. Give 4 examples of flowering plants. c. Name four ways of handling harmful plants. d. Explain the benefits of flowering plants.
  9. N/A

Need a Tutor or Coaching Class?

Post an enquiry and get instant responses from qualified and experienced tutors.

Post Requirement

Related Study Notes

Upload Study Notes

If you have your own Study Notes which you think can benefit others, please upload on LearnPick. For each approved Study Note you will get 100 Credit Points and 100 Activity Score which will increase your profile visibility.

Upload Now
Home > Study Notes > Notes On Science