CBSE Science Class 6 Model Paper From Chapter 11 - Light, Shadows and Reflection

M.M: 29 marks                                                     Date: 28/07/2011

Time: 40 minutes

Q 1: Fill in the blanks             (1 mark per question x 11 = 11 marks)

1. _________ objects do not allow light to pass through them.
2. Light travels in a __________ line.
3. Clear shadows are formed when an ________ object comes in the path of light.
4. __________ objects allow light to pass through them partially.
5. Objects having ability to produce their own light are called _____________ objects.
6. The length of a shadow in daytime is smallest at _______ time.
7. An image that cannot be obtained on a screen is called ___________ image.
8. The left part of an object becomes _______ part when the object is seen in a plane mirror.
9. An image formed at 2 m from the plane mirror will be _____ far from the object.
10. The category of image formed in a cinema screen is ________.
11. The category of image formed in standing clear water is ________.

Q 2: Choose the right answer:                                                (1 mark)

A plane mirror forms an image which is:

1. Inverted
2. Real
3. Enlarged
4. Virtual

Q 3: Find the odd one out:                                                     (1 mark)

1. Sun
2. Stars
3. Burning candle
4. Moon

Q 4: What do you understand by rectilinear propagation of light?        (1 mark)

Q 5: Why do we not see shadow of a plane flying very high in the sky? (1 mark)

Q 6: Write True or False, also write the correct statement wherever applicable for the false ones.    (1 mark per question x 7 = 7 marks)

1. A screen is not always needed for formation of a shadow - ________
2. Shadows can never mislead about the shape of the object - _________
3. Moon is an example of non-luminous object - _______________
4. A firefly is a living source of light - _________
5. The image formed by a pin hole camera is not inverted - __________
6. Shadows and images are same - ___________
7. Coating of mercury is done at the back of a glass to make it a mirror - ________

Q 7: With the help of an activity, prove that a plane mirror reflects light.                                                                                      (2 marks)

Q 8: In brief, describe the construction of a sliding pin hole camera with a diagram.                                                                      (4 marks)

Q 9: Write two conditions that are necessary for an object to be visible to our eyes.                                                                (2 marks)

Q 10: What will happen if you try to see the flame of a burning candle through the following?                                               (3 marks)

1. Opaque object
2. Translucent object
3. Transparent object

Q 11: What is a periscope? Draw its diagram and explain its working in brief.                                                                                   (3 marks)

Q 12: Define light, shadow and reflection.                            (3 marks)

CBSE Class 6 Science Model Test Paper From Chapter 4 - Sorting Materials Into Groups

M.M: 30 marks                                                   Dated: 27/07/2011

Time: 40 minutes

Q 1: Why a tumbler is not made of paper or cloth?              (1 mark)

Q 2: On what two criteria, do we choose a material for making an object?                                                                                   (2 marks)

Q 3: What do you understand by lustre? Name two substances that have lustre.                                                                            (2 marks)

Q 4: When will you call a material hard and when will you call it soft? Give two examples each of hard material and soft material.        (3 marks)

Q 5: What will happen when you mix water with                (3 marks)

1. Sand?
2. Chalk powder?
3. Sawdust?

Q 6: What do you understand by transparent, translucent and opaque material? Give two examples of each.                                  (6 marks)

Q 7: Write two materials that float on water and two materials that do not float on water.                                                             (2 marks)

Q 8: Pick the odd one out from the given materials and explain the reason for picking it.                                                               (1 mark)

Sugar, Salt, Sand and Copper sulphate

Q 9: Give one example that shows that the property of oxygen mixing with water is useful?                                                   (1 mark)

Q 10: Write two liquids that are soluble in water and two liquids that are insoluble in water.                                                            (2 marks)

Q 11: Write two materials that are attracted by a magnet and two materials that are not.                                                             (2 marks)

Q 12: Write True or False for the given statements. Correct the false statements.                                                                             (5 marks)

1. A non glossy notebook has lustre while a new metallic spoon does not have lustre - __________
2. Materials that allow heat to pass them are called insulators - _________
3. Liquids that mix with water area called immiscible - ___________
4. Clouds are an example of transparent material – __________
5. Flour is soluble in water - __________

CBSE Science Class 6 Model Paper From Chapter 2 - Components Of Food

M.M: 57 marks                                                   Dated: 26/07/2011

Time: 1 hour

Q 1: Fill in the blanks (1 mark per question x 18 = 18 marks)

1. _________ are the ingredients that contain some component needed by our body.
2. The major nutrients in our food are ____________, __________, _______, _________ and __________.
3. The main carbohydrates found in our food are the form of ______ and _________.
4. While doing test for starch in a food item or raw ingredient, 2-3 drops of ________ solution is put in the item being tested.
5. When test for starch in a food item is done, the ________ colour is obtained.
6. While doing test for fats in a food item, an ______ patch on paper shows that the food item contains fat.
7. The white portion of boiled egg will have ______ in it.
8. Milk will have __________ and ________ in it.
9. Carbohydrates mainly provide ________ to our body.
10. Proteins are needed for the __________ and _______ of our body.
11. _________ help in protecting our body against diseases.
12. Names of two common vitamins are vitamin ____ and vitamin _____.
13. Vitamin _____ keeps our skin and eyes healthy.
14. Mango, Papaya, Carrot, and Liver are rich in vitamin ______.
15. Lemon, Amla, Guava and Orange are rich in vitamin ______.
16. Rice is a ________ rich source of food.
17. Lack of vitamin ______ can cause loss of vision.
18. Diseases that occur due to lack of nutrients over a long period are called __________ _____________.

Q 2: In brief, write how will you do a test for protein in a food item?                                                                                                  (3 marks)

Q 3: Write two nutrients that provide us energy.                  (2 marks)

Q 4: Foods containing which nutrient are called body building foods?   (1 mark)

Q 5: What helps in keeping our eyes, bones, teeth and gums healthy?    (1 mark)

Q 6: Which vitamin helps our body to use calcium for bones and teeth?                                                                                      (1 mark)

Q 7: Write four sources of vitamin D.                                   (2 marks)

Q 8: Write four sources of vitamin B.                                   (2 marks)

 Q 9: What do you understand by roughage? What is its use in our body? Which products in our foods provide roughage?        (3 marks)

Q 10: In the given table, fill two sources of each of the minerals.        (4 marks)

Sources of iodine
Sources of phosphorus
Sources of iron
Sources of calcium

Q 11: What are the two purpose of water in human body?   (2 marks)

Q 12: Define balanced diet.                                                    (1 mark)

Q 13: In the given table, complete the disorder column by filling the name of disorder and symptom column by filling one symptom for the corresponding lack of given vitamins/minerals.                    (4 marks)

Deficiency of vitamin/mineral	Name of disorder	Symptoms
Iron
Calcium
Vitamin D
Vitamin C

Q 14: Deficiency of vitamin B1 causes which disorder and what are its two symptoms?                                                                  (3 marks)

Q 15: Lack of iodine causes which disease and what are its two symptoms?                                                                             (3 marks)

Q 16: What are the two symptoms of loss of vision disorder?            (2 marks)

Q 17: Write True or False, Correct false statements wherever relevant.                                                          (1 mark x 5 = 5 marks)

1. Chips are good source of dietary fibre - _________
2. Only some of the deficiency diseases can be prevented by taking a balanced diet - __________
3. Obesity means being too much thin - __________
4. Vitamins and minerals are there on skins of many vegetables and minerals - _________
5. Cooking results in loss of certain nutrients - _________

Answers to Science Class 6th Test Paper 1 From Chapter 1 – Food: Where Does It Come From

Answers to Science Class 6th Test Paper From Ch. 1 – Food: Where Does It Come From

M.M: 37 marks                                                   Dated: 06/07/2011

Time: 45 minutes

A 1: Fill in the blanks                        (1 mark each x 22 = 22 marks)

       i.          Parrots eat only herbivores products.

     ii.          Two animals that eat only plants are cow and deer. (Other answers could be: elephants, giraffes, horse, rabbit, sheep)

   iii.          Two animals that are omnivores are bears and rats. (Other answers could be: pigs, chickens, humans and cats)

   iv.          Two animals that are carnivores are lions and tigers. (other answers could be: dogs, leopards, cheetahs, cats, foxes and whales)

     v.          Food items that provide us energy are carbohydrates and fats.

   vi.          Two body building foods are proteins and carbohydrates.

vii.          Two edible parts of the plants are root (carrot) and fruit (tomato). (Other answers could be: Seeds – beans and flower – broccoli)

viii.          Two oil yielding plants are sunflower and mustard. (other answers could be: Olive, Soyabean, Castor, Almond and Peanut etc.)

   ix.          The energy producing component of food is carbohydrate.

     x.          Nutrients required for the growth of our body are proteins.

   xi.          The indigestible material in food is known as roughage.

xii.          We get protein from wheat. (Other answers could be: rice, oats, barley, peas, beans, almonds and peanuts).

xiii.          We get sugar from sugarcane.

xiv.          Oil is a plant product and ghee is an animal product.

xv.          Two plants whose roots are used as food are carrot and radish. (Other answers could be: beet, sweet potato and turnip).

xvi.          Two plants whose flowers are used as food are sunflower and jasmine. (Other possible answers could be: gladiolus and dandelion).

xvii.     When the seeds begin to grow or germinate by developing tiny roots, they are called sprouts.

xviii.  Two sources of food are plants and animals.

xix.        The green plants make their own food by the process of photosynthesis.

xx.          Based on the type of food eaten, Kingfisher is carnivores animal.

xxi.       Based on the type of food eaten, Pig is omnivores.

xxii. Based on the type of food eaten, Hippopotamus is herbivores.

Q 2: What are food producers and food consumers? Give one example of each.                                                                  (2 marks)

   A 2: As the name implies, food producers are plants that  
   manufactures food. Food producers are also known as autotrophs 
   (auto means self and troph means nourishing). One example of 
   food producers is plants.
   
   Food consumers are those that eat food, examples being humans 
   and animals who get food from plants directly by eating them or 
   indirectly by using their parts as fruits and vegetables. One example 
   of food consumers is animals.

   Q 3: What do the following eat:                                          (2 marks)
     i). House lizard  
     ii). Butterfly        

   A 3 i). House lizards eat small insects, worms and flies.

   A 3 ii) Butterflies eats mostly nectar from flowers. They also eat 
   pollens, dung, sand and dirt for minerals and rotten fruits.

                

   Q 4: Who produces honey? What is the name of structure where 
   honey is stored?                                                                    (2 marks)

   A 4: Honeybees produce honey.

   The name of the structure where honey is stored by honeybees is 
   called hives.

   Q 5: Give examples of two plants whose leaves are eaten as food.   
    (2 marks)

   A 5: Two examples of plants whose leaves are eaten as food are 
   spinach and cabbage. Other examples of such plants whose leaves 
   are eaten as food are young mustard, turnip, carrot, radish and 
   cauliflower.

   Q 6: What do you understand by ingredient? Write major 
    ingredients of:                                                                      (2 marks)

   i). Idli    

   ii). Kheer                     

   A 6 i). Ingredient means the component or constituent that     
   combines with other ingredients to make something.

   Ingredients of Idli are rice, urad dal, salt and water.

   Ingredients of kheer are rice, milk and sugar.

   Q 7: Draw a plant and label it parts – roots, bud, stem and leaf.          (2 marks)

A 7: The plant is drawn on left and its required parts are labelled.

   
   Q 8: What is the difference between beef and pork?           (1 mark)

   A 8: The flesh of bull ox and cow is known as beef.

   The flesh of a pig is known as pork.

 

   Q 9: In what two ways, we can help for providing food to many 
   people?                                                                                 (2 marks)

   A 9: We can help in providing food to many people by following 
   ways:

1. By not wasting any of the food in any form such as raw fruits and cooked vegetables etc.

Wastage of food leads to the shortage of food and can be avoided if we eat wisely and do not waste food in any form

2. Producing more food in fields.

Production of more food in the fields by farmers can also lead to more output of food and its supply to more people.