Read and download free pdf of CBSE Class 4 EVS Teeth Worksheet. Students and teachers of Class 4 Environmental Studies can get free printable Worksheets for Class 4 Environmental Studies Teeth in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 4 students should practice questions and answers given here for Environmental Studies in Class 4 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 4 Environmental Studies Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests
Worksheet for Class 4 Environmental Studies Teeth
Class 4 Environmental Studies students should refer to the following printable worksheet in Pdf for Teeth in Class 4. This test paper with questions and answers for Class 4 will be very useful for exams and help you to score good marks
Class 4 Environmental Studies Worksheet for Teeth
A. Tick (✓) the correct options and fill in the blanks.
Question. The number of teeth in a permanent set are .............................. .
a. 25
b. 30
c. 32
d. 35
Answer. C
Question. Teeth that help us bite food are .............................. .
a. incisors
b. Premolars
c. canines
d. molars
Answer. A
Question. The part of the tooth that lies below the enamel and is not so hard is……………..
a. crown
b. Pulp
c. dentine
d. root
Answer. C
Question. .............................. of teeth helps to remove bits of food stuck betwee teeth.
a.Toothbrush
b. Water
c. Brushing
d. Nut cracker
Answer. C
B. Fill in the blanks.
1. The fungus that helps to make bread soft is .......yeast...... .
2. The microbe that converts milk to curd is .....bacteria......
3. ........Pulp...................... is the part of the tooth that has nerves and blood vessels.
4. Microbes that cause diseases are called ......germs...........
5. Malaria and dysentery are caused by ..........protozoa.........
C. Write T for true and F for false statements.
1. Eating fibrous food causes tooth decay. (F)
2. Typhoid and tuberculosis are caused by bacteria (T)
3. Crown is the part of the tooth that lies above the gum. (T)
4. Brushing once a day prevents teeth decay. (F)
5. Permanent teeth can be replaced. (F)
6. A new born baby has no teeth. (T)
Answer in one word.
1. the hardest part of the tooth ......enamel........................
2. the microorganisms that cannot be seen under a normal microscope .....microbes...............
3. a fungus that is eaten .....mushroom.........................
4. the sticky substance formed on teeth ......plaque...................
5. the crushing teeth .........premolars.....................
Short answer questions
Question. Why are teeth important?
Answer. Teeth give shape to the face, help us to speak and help us to chew the food well.
Question. What are milk teeth?
Answer. First set of teeth is called the milk teeth or temporary teeth.
Question. Mention the conditions that help microbes grow.
Answer. In the presence of moisture, food, air and warmth,
Microbes grow rapidly.
Question. Write any two uses of bacteria.
Answer.
• Some bacteria change milk to curd.
• Some bacteria help to decay dead plants and animals
Question. Name the diseases caused by fungi.
Answer.• Ringworm
Athletes’ foot
Long answer questions
Question. What are the different kinds of teeth? Explain with diagrams.
Answer. Incisors (biting teeth):-There are eight incisors in all.
Canines (tearing teeth):-. There are four canines.
Premolars (crushing teeth):- There are eight premolars in all.
Molars (grinding teeth):-There are twelve molars.
Question. What are microbes? Name the diseases caused by different kinds of microbes.
Answer. Microbes or microorganisms are very tiny living organisms.
Infectious disease Type of microbe
Cold Virus
Chickenpox Virus
German measles Virus
Whooping cough Bacterium
Bubonic plague Bacterium
TB (Tuberculosis) Bacterium
Malaria Protozoan
Ringworm Fungus
Athletes’ foot Fungus
Question. Mention any four tips to follow to prevent tooth decay.
Answer. 1. Brush your teeth twice a day
2.Rinse your mouth with water after every meal
3.Eat fibrous food.
4. Visit a dentist regularly for a dental check-up.
Question. What are the different parts of a tooth?
Answer. Teeth are made up of different layers — enamel, dentin, pulp. Enamel, which is the hardest substance in the body, is on the outside of the tooth. The second layer is dentin, which is softer than enamel, and the deepest layer inside the tooth is pulp, which consists of nerves and blood vessels.
Question. Explain the cause of a tooth cavity.
Answer. Tooth decay is the softening of your tooth enamel caused by acids. These acids are created when plaque bacteria break down sugar in your mouth
Higher Order Thinking
Question. Why does a cavity cause pain only when it goes deep inside the tooth?
Answer.A cavity or crack can let bacteria into the inner layer pulp Which have nerves in it and we feel pain.
Question. As compared to a slice of bread kept outside a refrigerator, a slice of bread kept inside it, will last longer. Explain why?
Answer. Inside a refrigerator, because microbes cannot grow in very low temperature.
Q1. Fill in the blanks:
1._____________ help us to speak clearly.
2.______________ teeth grow when a child is about six months old.
3. ______________ helps us to taste food.
4. The hardest substance in the body is_____________________.
5. The inside of the tooth is filled with a soft substance called____________.
6. Incisors cut like_____________________.
7. Canines cut like an_____________________.
8. Molars crush like a ______________________.
9. _____________ and ______________ are good for the teeth.
10. A full set of adult teeth consists of ___________ teeth.
Q2. WRITE TRUE OR FALSE
1. Milk teeth are also called deciduous teeth. ( )
2. Toothache starts if the the hard enamel is broken down by caries. ( )
3. Canines are sharp, pointed teeth.( )
4. We should not see a dentist regularly. ( )
5. We should take good care of our teeth. ( )
6. There are 30 teeth in adult.( )
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CBSE Class 4 Environmental Studies Teeth Worksheet
We hope students liked the above worksheet for Teeth designed as per the latest syllabus for Class 4 Environmental Studies released by CBSE. Students of Class 4 should download in Pdf format and practice the questions and solutions given in the above worksheet for Class 4 Environmental Studies on a daily basis. All the latest worksheets with answers have been developed for Environmental Studies by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their class tests and examinations. Studiestoday is the best portal for Class 4 students to get all the latest study material free of cost.
Worksheet for Environmental Studies CBSE Class 4 Teeth
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Teeth worksheet Environmental Studies CBSE Class 4
All worksheets given above for Class 4 Environmental Studies have been made as per the latest syllabus and books issued for the current academic year. The students of Class 4 can be rest assured that the answers have been also provided by our teachers for all worksheet of Environmental Studies so that you are able to solve the questions and then compare your answers with the solutions provided by us. We have also provided a lot of MCQ questions for Class 4 Environmental Studies in the worksheet so that you can solve questions relating to all topics given in each chapter. All study material for Class 4 Environmental Studies students have been given on studiestoday.
Teeth CBSE Class 4 Environmental Studies Worksheet
Regular worksheet practice helps to gain more practice in solving questions to obtain a more comprehensive understanding of Teeth concepts. Worksheets play an important role in developing an understanding of Teeth in CBSE Class 4. Students can download and save or print all the worksheets, printable assignments, and practice sheets of the above chapter in Class 4 Environmental Studies in Pdf format from studiestoday. You can print or read them online on your computer or mobile or any other device. After solving these you should also refer to Class 4 Environmental Studies MCQ Test for the same chapter.
Worksheet for CBSE Environmental Studies Class 4 Teeth
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