4 science assignment.docx · web viewleaves that contain stored food which you eat. _____ 2-plants...
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NEW HORIZON SCHOOL
SESSION 2017-18
Worksheets Term - 1
CLASS IV
Subject: Science
Name : ………………………………………………….
Roll no. : ………………………………………………….
Class & Sec. : ………………………………………………….
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Worksheet 1 Ch:1 (Green plants – Thefood producers)
Q.1. Write the functions of the following:
1- Chlorophyll
_________________________________________________________________________________________________________________________________________________________________________________________________________
2- Stomata
_________________________________________________________________________________________________________________________________________________________________________________________________________
Q.2. Answer the following in one word:
1- Food factory of a plant:_________________________________
2- Food prepared by a leaf:_________________________________
3- Plants that obtain their nutrition from dead and decaying plants and animals:________________________________
4- Tiny openings on the surface of the leaves:_________________________
Q.3. Define the following terms:
1- Saprophytic plants:
______________________________________________________________________________________________________________________________________
2- Photosynthesis:
_________________________________________________________________________________________________________________________________________________________________________________________________________
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Q.4. Unscramble the given words.
(a) CHARTS:_____________________(b) LUDMOS:________________________(c) STORO:___________________________(d) RHPYSAPICTO:______________________
Q.5. Why mushrooms and moulds are known as saprophytic plants?
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Q.6. Give two examples of the following:
1- Leaves that contain stored food which you eat.
___________________________________________________________________
2- Plants having variegated leaves.
___________________________________________________________________
3- Plants lacking chlorophyll.
___________________________________________________________________
Q.7. Give an activity to test the presence of starch.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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Q.8. Draw the diagram of a leaf and label its parts:
Q.9. Fill in the blanks:
1- The green colour of leaves is due to the presence of _________________.
2- _________________ is the stored form of sugar.
3- Stomata help plants in _____________________________.
4- __________________ and ________________ do not contain chlorophyll.
5- The leaves of cactus are reduced to _______________ and cannot perform photosynthesis. The food is prepared by _____________________________.
Q.10. Identify the parts of a plant:
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Worksheet 2Ch:2 (Adaptations for survival in plants)
Q.1. Define the following:
1- Adaptation
______________________________________________________________________________________________________________________________________
2- Habitat
______________________________________________________________________________________________________________________________________
Q.2. Differentiate between Deciduous and evergreen trees.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Q.3. Give two examples of the following:
1- Plants that grow in plains:_______________________________________
2- Plants that grow in deserts:_______________________________________
3- Plants that grow on hills:_________________________________________
4- Plants that grow in marshy places:_________________________________
5- Plants that grow in coastal areas:__________________________________
6- Insectivorous plants:____________________________________________
7- Plants that do not contain chlorophyll:_____________________________
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Q.4. Name the factors which influence the adaptations developed by plants.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Q.5. What are aquatic plants?
_________________________________________________________________________________________________________________________________________________________________________________________________________
Q.6. Complete the following web chart:
Q.7. Identify the following:
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Worksheet 3Ch:3 (Reproduction in Animals)
Q.1. Define:
1- Reproduction:
______________________________________________________________________________________________________________________________________
2- Warm blooded animals:
______________________________________________________________________________________________________________________________________
3- Flippers:
______________________________________________________________________________________________________________________________________
4- Metamorphosis:
______________________________________________________________________________________________________________________________________
5- Amphibians:
______________________________________________________________________________________________________________________________________
Q.2. Answer the following in one word:
1- Frogs lay their eggs in large clusters:________________________
2- An organism at any time before hatching or birth:___________________
3- Animals that give birth to their young ones:_____________________
4- Process of change of a tadpole into an adult:_______________________
5- An egg of a frog develops into a fish like structure:____________________
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Q.3. Give two examples of the following:
1- Mammals which give birth to their young ones:
______________________________ _______________________________
2- Animals that lay eggs:
______________________________ _______________________________
3- Amphibians:
______________________________ _______________________________
4- Reptiles:
______________________________ _______________________________
5- Mammals which do not give birth to their young ones:
______________________________ _______________________________
6- Aquatic animals:
______________________________ _______________________________
Q.4. Draw the structure of an egg and label its parts:
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Q.5. Complete the given table:
S.No. Animals Young Ones
1. Cow
2. Horse
3. Sheep
4. Lion
Q.6. Label the following life cycle:
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Worksheet 4 Ch:4 (Adaptations for survival in animals)
Q.1. Give three adaptations of the following:
1- Terrestrial animals:
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
2- Amphibians:
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
3- Arboreal animals:
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Q.2. How are aerial animals adapted to their habitat?
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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Q.3. Complete the web chart.
Q.4. Define the following:
1- Extinct animals:
_________________________________________________________________________________________________________________________________________________________________________________________________________
2- Blubber:
_________________________________________________________________________________________________________________________________________________________________________________________________________3- Hibernation:
_________________________________________________________________________________________________________________________________________________________________________________________________________
Classification of animals on the basis of food
Carnivores
____________________________________________________________________________________________
_______________________________________________________________________________________________________________________
_______________________________________________________________________________________________________________________
They have sucking tubes to suck blood from their host. Eg:Fleas, lice and mosquitoes.
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4- Camouflaging:
_________________________________________________________________________________________________________________________________________________________________________________________________________
Q.5. Fill in the blanks:
1. Habitat provides food , ________________ and________________ which
an animal needs to survive.
2. Terrestrial animals have well-developed nervous system and __________
____________ which enable them to sense changes in their surroundings.
3. A snake has _____________ which help it to crawl.
4. A camel stores fat in its ____________ to survive scarcity of ___________
and water.
5. Moth caterpillar defends itself by ________________________ a snake.
Q.6. Complete the table:
S.No. Animals Breathing organs
1. Lion
2. Whale
3. Fish
4. Frog on land
5. Frog in water
6. Insects
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Worksheet 5Ch:5 (More about Insects)
Q.1. Answer in one word:
1- Hard outer covering of insects:___________________________
2- Chest of an insect:_______________________________
3- A wingless insect:_______________________
4- Chemicals used to destroy pests:_________________________
5- Insects breathe through small openings in the exoskeleton:____________
6- Head of the insect’s colonies:______________________
Q.2. Fill in the blanks:
1- Insects have ____________________ eyes that have thousands of lenses.
2- ___________________ Provides necessary support and flexibility to the body of insects.
3- Insects use their antennae to detect ________________ , ______________ and sounds.
4- __________________ of an insect contains the heart , respiratory system, excretory system , digestive system and reproductive system.
5- The caterpillar spin cocoon around themselves called _______________.
Q.3. Label the body parts of an insect:
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Q.4. Define Life cycle:
______________________________________________________________________________________________________________________________________
Q.5. Who am I?
_________________ __________________ _______________
Q.6. Label the stages of life cycle of a butterfly.
Yummy leaf
I love cakes
Interesting books
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Worksheet 6Ch:6 (Food and Nutrition)
Q.1. Define the following:
1- Nutrition:
_________________________________________________________________________________________________________________________________________________________________________________________________________
2- Balanced Diet:
_________________________________________________________________________________________________________________________________________________________________________________________________________
3- Nutrients:
_________________________________________________________________________________________________________________________________________________________________________________________________________
Q.2. Complete the table:
S.No. Nutrients Their sources Functions
1. Carbohydrates
2. Fats
3. Proteins
4. Vitamins and Minerals
5. Roughage
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Q.3. Identify the type of nutrient in the given food items ad classify them as Energy-Giving food , Body-Building food and Protective food.
1. 2. 3.
____________________ ___________________ ___________________
____________________ ___________________ ___________________
4. 5. 6.
____________________ ___________________ ___________________
____________________ ___________________ ___________________
7. 8. 9.
____________________ ___________________ ___________________
____________________ ___________________ ___________________