To reduce exam fear, Class 6 Basic Science Question Paper Kerala Syllabus Set 1 provide good practice.
Kerala Syllabus 6th Standard Basic Science Model Question Paper Set 1
Times : 2 hours 15 minutes
Total Score: 60
Instructions:
- 15-minute cool-off time is allotted for reading and understanding the activities.
- Answer any six questions.
Question 1.
Observe the fruits given below
a) Which fruit is grown from a single flower?
Answer:
Custard apple develops from a single flower with many ovaries → aggregate fruit.
b) Understand the statement given below and choose the correct reason.
Statement: Apple, cashew and strawberry are called pseudo-fruits.
Reason:
i) In pseudo-fruits, parts of the flower other than the ovary take part in fruit formation.
ii) In all fruits, only the ovary develops into the fruit.
iii) In cashew, the pedicel develops into the fruit-like structure.
iv) In apples and strawberries, the thalamus grows and becomes the fruit.
A. Only i is correct.
B. Only iii is correct.
C. i, iii and iv correct.
D. i and iv are correct.
Answer:
C. i, iii and iv correct.
c) Classify the following fruits based on their features. Write the names of the group.
| Mango, Guava, Apple, Custard apple, Strawberry, Cashew |
Answer:
| Simple fruit | Aggregate fruit | Pseudo fruit |
| Mango | Custard apple | Cashew |
| Guava | Strawberry | Apple |
Question 2.
a) Arrangement of molecules in solids, liquids and gases is shown below. Identify the states A, B and C.
Answer:
A: liquid state,
B: gaseous state,
C: solid state
b) Gases can spread fast. Why?
Answer:
Gases have a lot of space between the molecules and do not have a strong force of attraction between them. They can move quickly in all directions. Hence, gases can spread fast.
c) 4 statements related to states of matter are given below. Which are the correct statements?
i) Solids have a definite shape and definite volume.
ii) Liquids have a definite shape but no definite volume.
iii) Gases can be easily compressed.
iv) Particles in gases are closely packed with strong forces of attraction.
Options:
A. Statements i and iii are correct.
B. Statements ii and iv are correct.
C. Statements i and ii are correct.
D. Statements iii and iv are correct.
Answer:
A. Statements i and iii are correct.
Question 3.
Observe the picture.
a) What are the energy changes that occur when a mixer grinder works?
Answer:
When a mixer grinder works, electrical energy is converted into mechanical energy, sound energy and heat energy.
b) Find the odd one out.
i) Firecracker bursts
ii) Bottle breaks
iii) String of kite breaks
iv) Electric wire breaks
Answer:
i) Fire cracker bursts (Chemical change. Others are physical change)
c) Examine the following changes. Fill in the blanks.
| Change | Chemical Change/Physical Change |
| Camphor burning | Chemical change |
| Cutting firewood | (ii) ___ |
| MeItinf tar | (ii) ___ |
| Rusting of Iron | (iii) ___ |
Answer:
i) Physical change
ii) Physical change
iii) Chemical Change
Question 4.
contains two parts: 4 (A) and 4 (B). Write any one from 4 (A) or 4 (B) completely.
a) Why did the teacher disagree with the student’s opinion?
Answer:
Even though too much fat leads to cholesterol and cardiac diseases, fats help us to absorb vitamins. That is, certain vitamins dissolve only in Fat. To get these vitamins, it is essential to include fat in our diet. That is why the teacher disagreed with the student’s opinion.
b) What are the problems of increasing the fat level in food?
Answer:
Fatty foods and fried items contain a high amount of fat in it. High intake of these items increases the level of cholesterol in our blood. If there is excess cholesterol in the blood, it gets deposited in the inner wall of blood vessels and prevents blood flow. This may cause fatal diseases like stroke and heart failure.
c) Some habits to control the fat level in the body are given below. Analyse these statements and identify the correct one.
i. Exercise daily.
ii. Avoid fried food items.
iii. Take protein rich diet.
A. i and ii are correct
C. Only ii is correct.
B. Only i is correct.
D. All are correct.
Answer:
A. i and ii are correct
B. (a) Most of the students were detected with night blindness in a medical camp conducted in a school. The doctor said that this problem can be cured through food. List out the food items suggested by the doctor.
Answer:
Night blindness is caused due to deficiency of Vitamin A. The food items rich in vitamin A, like carrots, fish, milk products, amaranthus,, egg, and spinach, are suggested by the doctor.
b) Which vitamin is lost when the food is cooked, keeping the vessel open?
Answer:
Vitamin C is lost when the food is cooked, keeping the vessel open.
c) Ramu used plenty of milk and seafood in his diet. But the doctor found that he has a calcium deficiency. Find out the reason behind this problem from the following.
i. Insufficient intake of water.
ii. Insufficient intake of Vitamin C-rich food.
iii. Insufficient exposure to sunlight.
iv. Insufficient intake of protein-rich food.
Answer:
iii. Insufficient exposure to sunlight.
Question 5.
a) A straight line is drawn using a scale. Which of the following motions is similar to the motion of the pen at that time?
i. Movement of wiper of vehicles
ii. Movement of a compass while drawing a circle
iii. Movement of a lift
iv. Motion of a stone thrown away
Answer:
iii. Movement of a lift
b) Understand the statement and the reason given below and choose the correct answer from the following. Statement (S): A lift moving up or down shows linear motion.
Reason (R): Linear motion is the motion of an object along a straight line.
A. The statement is correct. But the reason is not suitable for the statement.
B. The statement is wrong. But the reason is suitable for the statement.
C. The statement is wrong. But the reason is not suitable for the statement
D. The statement is correct. But the reason is suitable for the statement,
Answer:
D. The statement is correct. But the reason is suitable for the statement,
c) Give one example of linear motion from daily life.
Answer:
A car moving on a straight road.
Question 6 contains two parts: 6 (A) and 6 (B). Write any one from 6 (A) or 6 (B) completely.
Question 6.
A. Manu’s BMI is below 17.5, and Anu is having BMI of 23
a) Write the physical condition of Manu and Anu?
Answer:
Manu -Underweight
Anu-Normal weight
b) What is BMI?
Answer:
BMI (Body Mass Index) is a measure used to determine a person’s physical condition based on height and weight.
c) Observe the information given in the table.
| BMI | Physical condition |
| a) Below 18.5 | (i) Normal weight |
| b) 18.5-24.9 | (ii) Underweight |
| c) 25-29.9 | (iii) Obesity (First stage) |
| d) 30-34.9 | (iv) Overweight |
Which of the following is correct based on the information given in the table?
A. a-ii,b-i,c-iv,d-iii
B. a-ii,b-i,c-iii,d-iv
C. a-i,b-ii,c-iv,d-iii
D. a-iii,b-ii,c-iv,d-i
Answer:
| BMI | Physical condition |
| a) Below 18.5 | (ii) Underweight |
| b) 18.5-24.9 | (i) Normal weight |
| c) 25-29.9 | (iv) Overweight |
| d) 30-34.9 | (iii) Obesity (First stage) |
B. Observe the picture given below.
a) What are the problems with eating only these food items regularly?
Answer:
Obesity and Overweight
Type 2 Diabetes
Nutrient Deficiencies
Risk of heart attacks
Strokes and hypertension.
b) What habits should be adopted to maintain a healthy lifestyle?
Answer:
Drink adequate amounts of water daily. Replace fried and processed items with meals rich in fruits, vegetables, whole grains, and lean proteins. Regular Exercise. Adequate Sleep
c) Examine the given statement and the reason for it.
Statement: Obesity is a condition in which body weight increases above normal.
Reason: Excessive consumption of sugar, salt, oil, ghee, and fat, along with a lack of exercise, leads to obesity.
By examining the statement and the reason, find out which of the following is correct.
A. Statement and reason are correct
B. Statement and reason are incorrect
C. Statement is correct, and reason is incorrect
D. Statement is incorrect, and reason is correct
Answer:
A. Statement and reason are correct