NEW HORIZON SCHOOL
SESSION 2017-18
Worksheets Term - 1
CLASS IV
Subject: Science
Name
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Roll no.
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Class & Sec.
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Worksheet 1
Ch:1 (Green plants – Thefood producers)
Q.1. Write the functions of the following:
1-
Chlorophyll
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2-
Stomata
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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:
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___________________________________________________________________
2-
Photosynthesis:
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Q.4. Unscramble the given words.
(a)
(b)
(c)
(d)
CHARTS:_____________________
LUDMOS:________________________
STORO:___________________________
RHPYSAPICTO:______________________
Q.5. Why mushrooms and moulds are known as saprophytic plants?
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___________________________________________________________________
___________________________________________________________________
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Q.6. Give two examples of the following:
1-
Leaves that contain stored food which you eat.
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2-
Plants having variegated leaves.
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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.
5The leaves of cactus are reduced to _______________ and cannot perform
photosynthesis. The food is prepared by _____________________________.
Q.10. Identify the parts of a plant:
Worksheet 2
Ch:2 (Adaptations for survival in plants)
Q.1. Define the following:
1-
Adaptation
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2-
Habitat
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Q.2. Differentiate between Deciduous and evergreen trees.
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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:_____________________________
Q.4. Name the factors which influence the adaptations developed by plants.
___________________________________________________________________
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Q.5. What are aquatic plants?
___________________________________________________________________
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Q.6. Complete the following web chart:
Q.7. Identify the following:
Worksheet 3
Ch:3 (Reproduction in Animals)
Q.1. Define:
1-
Reproduction:
___________________________________________________________________
___________________________________________________________________
2-
Warm blooded animals:
___________________________________________________________________
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3-
Flippers:
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4-
Metamorphosis:
___________________________________________________________________
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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:____________________
Q.3. Give two examples of the following:
1-
Mammals which give birth to their young ones:
______________________________
2-
Animals that lay eggs:
______________________________
3-
_______________________________
Mammals which do not give birth to their young ones:
______________________________
6-
_______________________________
Reptiles:
______________________________
5-
_______________________________
Amphibians:
______________________________
4-
_______________________________
_______________________________
Aquatic animals:
______________________________
_______________________________
Q.4. Draw the structure of an egg and label its parts:
Q.5. Complete the given table:
S.No. Animals
1.
Cow
2.
Horse
3.
Sheep
4.
Lion
Q.6. Label the following life cycle:
Young Ones
Worksheet 4
Ch:4 (Adaptations for survival in animals)
Q.1. Give three adaptations of the following:
1- Terrestrial animals:
___________________________________________________________________
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2-
Amphibians:
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3-
Arboreal animals:
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Q.2. How are aerial animals adapted to their habitat?
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Q.3. Complete the web chart.
Classification of animals on the basis of food
Carnivores
_____________
_____________
_____________
_____________
_____________
_____________
_____________
_
Q.4.
_____________
_____________
_____________
_____________
_____________
_____________
_____________
_____________
_____________
Define the following:
__
1-
Extinct animals:
_____________
_____________
_____________
_____________
_____________
_____________
_____________
_____________
_____________
__
They have
sucking tubes
to suck blood
from their host.
Eg:Fleas, lice
and
mosquitoes.
___________________________________________________________________
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___________________________________________________________________
2-
Blubber:
___________________________________________________________________
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3Hibernation:
___________________________________________________________________
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4-
Camouflaging:
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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
1.
Lion
2.
Whale
3.
Fish
4.
Frog on land
5.
Frog in water
6.
Insects
Breathing organs
Worksheet 5
Ch: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:
Q.4. Define Life cycle:
___________________________________________________________________
___________________________________________________________________
Q.5. Who am I?
Yummy
leaf
I love
cakes
_________________
__________________
Q.6. Label the stages of life cycle of a butterfly.
Interesting
books
_______________
Worksheet 6
Ch:6 (Food and Nutrition)
Q.1. Define the following:
1-
Nutrition:
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
2-
Balanced Diet:
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
3-
Nutrients:
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
Q.2. Complete the table:
S.No.
Nutrients
1.
Carbohydrates
2.
Fats
3.
Proteins
4.
Vitamins and
Minerals
Roughage
5.
Their sources
Functions
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.
____________________
___________________
___________________
____________________
___________________
___________________
7.
8.
9.
____________________
___________________
___________________
____________________
___________________
___________________
6.