6th Science First Term Exam 2024 - Solved Question Paper
COMMON FIRST TERM SUMMATIVE EXAMINATION - 2024 | Standard - VI | Ranipet District
PART - A (10 x 1 = 10)
I Choose the correct answer.
1. Conversion of 7m in to cm gives _____.
c) 700 cm (Hint: 1 metre = 100 centimetres)
2. Quantity that can be measured is called _____.
a) Physical quantity
3. Unit of Speed is _____.
d) m/s (metre per second)
4. Seeds from water-melon can be removed by _____.
a) hand-picking
5. Organ of absorption is _____.
a) root
6. Pond is an example of _____ ecosystem.
b) freshwater
7. The study of living beings (or) organisms is called _____.
b) Biology
8. Which animal has the special organs of breathing called gills?
c) Fish
9. Scurvy is caused due to the deficiency of _____.
c) Vitamin C
10. Who is the father of computer?
d) Charles Babbage
PART - B (15 x 2 = 30)
II Answer any 15 questions (Short answer).
11. Define mass.
Mass is the measure of the amount of matter in an object. Its SI unit is kilogram (kg).
12. Name different types of motion based on the path.
- Linear motion
- Curvilinear motion
- Circular motion
- Rotatory motion
- Oscillatory motion
- Irregular motion
13. Arrange the following in the increasing order of unit: 1 metre, 1 centimetre, 1 kilometre and 1 millimetre.
1 millimetre, 1 centimetre, 1 metre, 1 kilometre
14. Complete the analogy:
a) Kicking a ball : Contact force :: falling of leaf : Non-contact force (or Gravitational force)
b) Distance : metre :: Speed : m/s (metre/second)
15. Fill in the blanks:
a) Matter is made up of atoms.
b) Chillies are removed from upma by hand-picking method.
16. Why do we separate mixtures?
We separate mixtures for the following reasons:
- To remove unwanted or harmful components.
- To obtain useful components.
- To obtain a highly pure substance.
17. Match the following:
- Gets heated readily - Metal Pan
- Breaks easily - mud pot
- Bends readily - Plastic wire
- Can be Stretched easily - Rubber band
18. What is meant by food adulteration?
Food adulteration is the practice of adding other substances to a food item in order to lower its quality, increase its quantity, or make it appear better for economic gain.
19. Say True or false.
a) Plants can live without water. - False
b) Green plants need Sunlight. - True
20. Define the term habitat.
A habitat is a natural environment or home of a particular species of animal, plant, or other organism. It provides the organism with food, water, shelter, and a place to reproduce.
21. Compare the tap root and fibrous root system.
| Tap Root System | Fibrous Root System |
|---|---|
| It has a single, main primary root that grows deep into the soil. | It consists of a cluster of thin, thread-like roots arising from the base of the stem. |
| Smaller lateral roots grow from the main root. | All roots are of a similar size. |
| Example: Carrot, Mango, Neem. | Example: Grass, Rice, Maize. |
22. List out the plants present in your school garden.
(Students should write the names of plants in their own school garden).
Example: Rose, Hibiscus, Mango tree, Neem tree, Tulsi.
23. Arrange the following in Correct Sequence.
i) Leaf - Stem - Root - flower
Correct Sequence: Root → Stem → Leaf → flower
ii) Transpiration - Conduction - Absorption - fixation
Correct Sequence: Absorption → Conduction → Transpiration
24. How do birds catch their prey?
Birds use their beaks and sharp claws, called talons, to catch their prey. The shape and size of their beaks are adapted to the type of food they eat.
25. Write the adaptive features of polar bear.
- Thick layer of white fur for camouflage and insulation.
- A layer of fat called blubber to keep them warm.
- Large paws to distribute their weight and walk on snow.
- A strong sense of smell to detect prey.
26. What are the body parts of a Snake?
The body of a snake is typically divided into three parts: the head, the trunk (body), and the tail. They are covered with scales and lack limbs, eyelids, and external ears.
27. Complete the analogy:
i) Rice : Carbohydrates :: Pulses : Proteins
ii) Iodine : Goitre :: Iron : Anaemia
28. Define balanced diet.
A balanced diet is a diet that contains adequate amounts of all the necessary nutrients (carbohydrates, proteins, fats, vitamins, minerals, fibre, and water) required for healthy growth and activity.
29. Complete the diagram.
The missing nutrients in the diagram are Fats and Minerals.
30. Name any four input devices.
Four input devices are: Keyboard, Mouse, Scanner, and Microphone.
PART - C (4 x 5 = 20)
III Answer any 4 questions.
31. Explain two methods that you can use to measure the length of a curved line.
Two methods to measure the length of a curved line are:
- Using a String:
- Place a string carefully along the path of the curved line from the starting point to the end point.
- Mark the start and end points on the string.
- Straighten the string and place it against a ruler.
- Measure the length between the two marked points on the string. This length gives the length of the curved line.
- Using a Divider:
- Set the divider to a small, convenient fixed length (e.g., 1 cm).
- Place one tip of the divider at the starting point of the curved line and let the other tip mark the next point on the line.
- "Walk" the divider along the line, counting the number of full steps.
- Measure any remaining portion with a ruler.
- The total length is calculated as: (Number of steps × Length of one step) + Length of the remaining part.
32. Give examples:-
- a) Linear motion: A car moving on a straight road.
- b) Curvilinear motion: A stone thrown in the air.
- c) Circular motion: The tip of the second's hand of a clock.
- d) Oscillatory motion: The movement of a pendulum in a clock.
- e) Irregular motion: A butterfly flying in a garden.
33. Make a list of the functions of root and stem.
Functions of the Root:
- Anchorage: It fixes the plant firmly to the soil.
- Absorption: It absorbs water and essential minerals from the soil.
- Storage: In some plants, roots store food (e.g., carrot, radish).
Functions of the Stem:
- Support: It supports the branches, leaves, flowers, and fruits, holding them up to the sunlight.
- Conduction: It transports water and minerals from the roots to the rest of the plant and food from the leaves to other parts.
- Storage: Some stems store food (e.g., potato, sugarcane).
34. Differentiate between Unicellular and multicellular organisms.
| Feature | Unicellular Organisms | Multicellular Organisms |
|---|---|---|
| Number of Cells | They are made up of a single cell. | They are made up of many cells. |
| Functions | The single cell performs all essential life functions. | Different cells are specialized to perform different functions (division of labour). |
| Complexity | They have a simple body organization. | They have a complex body organization with tissues, organs, and organ systems. |
| Lifespan | They generally have a short lifespan. | They generally have a longer lifespan. |
| Examples | Amoeba, Bacteria, Yeast. | Humans, Mango tree, Fish. |
35. Tabulate the vitamins and their corresponding deficiency diseases.
| Vitamin | Deficiency Disease |
|---|---|
| Vitamin A | Night Blindness |
| Vitamin B | Beriberi |
| Vitamin C | Scurvy |
| Vitamin D | Rickets |
| Vitamin E | Nerve and muscle damage, fertility problems |
| Vitamin K | Excessive bleeding due to delayed clotting |
36. Explain in detail about the applications of computer.
Computers are versatile machines used in almost every field. Some of their key applications are:
- Education: Used for online classes (e-learning), research, accessing digital libraries, and creating educational content.
- Healthcare: Used for maintaining patient records, diagnosing diseases (e.g., MRI, CT scans), monitoring patients, and in surgical procedures.
- Business and Banking: Used for managing finances, storing data, online banking, ATM services, and communicating with clients.
- Entertainment: Used for watching movies, listening to music, playing games, and social networking.
- Science and Engineering: Used for performing complex calculations, scientific research, weather forecasting, and designing structures and machines (CAD/CAM).
- Communication: Used for sending emails, video conferencing, and instant messaging, connecting people across the globe.