Plants--Our Green Friends - Class 4 - EVS
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Try Out 1 - Plants--Our Green Friends | Headlights World Around Us Course Book | EVS | Class 4
Label the part of the leaf given below.
Try Out 2 - Plants--Our Green Friends | Headlights World Around Us Course Book | EVS | Class 4
What is photosynthesis?
Photosynthesis is the process by which green leaves prepare food for a plant in the presence of sunlight using water, minerals and carbon dioxide. The leaves contain a green pigment called chlorophyll which captures sunlight and uses its energy to convert water and carbon dioxide to oxygen and glucose, which is a type of sugar. Oxygen is released into the air as a byproduct, giving us clean air to breathe. This is a crucial process for the survival and growth of a plant.
Which part of a leaf carries water and nutrients?
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Sign up nowBack Questions - Plants--Our Green Friends | Headlights World Around Us Course Book | EVS | Class 4
Which of the following helps in giving support to a leaf?
a. stipule
b. stomata
c. vein
d. midrib
d. midrib
Which of the following is a producer in a food chain?
a. grasshopper
b. deer
c. grass
d. lion
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Sign up nowWhich of the following helps in gas exchange in a leaf?
a. midrib
b. vein
c. stomata
d. petiole
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Sign up nowWhich of the following parts of a plant makes food?
a. roots
b. stem
c. leaf
d. flower
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Sign up nowWhich of the following statements gives the correct difference between a food chain and a food web?
a. A food web includes only plants, while a food chain includes only animals.
b. A food web shows the flow of energy in multiple interconnected food chains.
c. A food web consists only of predators and prey, while a food chain consists of producers.
d. A food web is simpler than a food chain.
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Sign up nowMark the sentences true $(T)$ or false $(F)$.
1. The veins running through the leaves transport water and nutrients to different parts of a plant.
2. Leaves are the main site of photosynthesis in plants.
3. Plants store food only in fruits and not in other parts.
4. Plants release oxygen as a byproduct of photosynthesis.
5. A food chain always starts from small animals.
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Sign up nowFill in the blanks.
1. The green pigment called _________ during photosynthesis. is responsible for capturing sunlight
2. Tiny openings on a leaf's surface that help it breathe are called _________.
3. The main function of a leaf is to conduct _________ which is the process by which plants convert sunlight into energy.
4. A _________ as food for the next. is a series of plants and animals where each organism serves
5. A network of interconnected food chains that shows the complex feeding relationships in an ecosystem is called a _________ .
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Sign up nowName the part of the leaf that connects its blade to the stem.
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Sign up nowWhy are leaves called the kitchen of the plant?
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Sign up nowPlants make their food by the process of photosynthesis. How do plants use this food?
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Sign up nowObserve the given plant carefully. Analyse and write the reasons for this condition of the plant.
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Sign up nowImagine yourself to be a plant leaf. Describe the role you play in a food chain.
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Sign up nowKeshav visited his grandparents' place at a small village in Tamil Nadu. He was amazed to see the village people eating food on banana leaves.
1. Using the Internet, find out in which other Indian states is food served on banana leaves?
2. Find a banana leaf or any leaf with a large leaf blade and measure its length with the help of a ruler. Express this length in two different units.
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Sign up nowExtra Questions - Plants--Our Green Friends | Headlights World Around Us Course Book | EVS | Class 4
What is the main function of a leaf in a plant?
The main function of a leaf in a plant is to act as the plant's kitchen. It uses sunlight and other ingredients to make food. This process is known as photosynthesis. The leaf captures sunlight and uses this energy to convert water and carbon dioxide into oxygen and glucose, a type of sugar. This sugar provides the plant with the energy it needs to live and grow.
What is called the food-making process in a leaf?
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Sign up nowWhat happens in a food chain?
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