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Showing posts with label Chapter 6. Show all posts
Showing posts with label Chapter 6. Show all posts

Tuesday, 26 June 2018

CBSE Class 6 Science Chapter 7 Getting to Know Plants Fill in the blanks

CBSE Class 6 Science 

Chapter 7: Getting to Know Plants

Fill in the blanks

  1. Plants which have the stem branching out near the based is called ----------------
  2. -------------- is an example for a herb
  3. The part of a leaf which is attached to the stem is called -----------
  4. The design made by veins in a leaf is called ------------
  5. The venation which has a net-like design on both sides of midrib is called ------------.
  6. Plants release a lot of water into the air through the process of ----------------
  7. ------------ is given out in the process of photosynthesis.
  8. The food prepared by leaves ultimately gets stored in different parts of plant as --------------. 
  9. The innermost part of a flower is called ----------.
  10. ---------- is the lowermost and swollen part of the pistil
  11. Lemon is an example of a -----------
  12. The broad, green part of the leaf is called --------.
  13. Leaves prepare their food by the process of ----------.
  14. The small bead like structures inside the ovary is called ------------.
  15. Plants with weak stems that cannot stand upright and spread on the ground are called -----------
  16. The thick vein in the middle of the leaf is called -------------

Answers

  1. shrubs
  2. rice
  3. petiole
  4. leaf venation
  5. reticulate venation
  6. transpiration
  7. Oxygen
  8. starch
  9. pistil
  10. Ovary
  11. shrub
  12. lamina
  13. photosynthesis
  14. ovules
  15. creepers
  16. midrib

Wednesday, 20 June 2018

CBSE Class 6 Science Chapter 6 Changes around Us NCERT Solutions

CBSE Class 6 Science 

Chapter 6: Changes around Us

NCERT Solutions


1. To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?

Answer: Yes. This can be reversed by unfolding it

2. You accidentally dropped your favourite toy and broke it. This is a change you did not want. Can this change be reversed?

Answer: No. It cannot be reversed.

3. Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.

Answer: 
1. No
2. Yes
3. Yes
4. No
5. No
6. No


4. A drawing sheet changes when you draw a picture on it. Can you reverse this change?

Answer: It can be reversible if it is drawn with a pencil.

5. Give examples to explain the difference between changes that can or cannot be reversed.

Answer: Melting of ice into water is an example for reversible change, because we can get the ice by the freezing the water again. Where are burning of a paper into ash is an irreversible change because we cannot get the paper back from ashes received. 

Similarly, folding of a paper into a boat is a reversible change because we can get back the paper by unfolding it, whereas the cooking of food is an irreversible change because we cannot get the ingredients back from the cooked food

6. A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed?

Answer: We cannot get Plaster of Paris back in its original form. Hence it is an irreversible change

7. A bag of cement lying in the open gets wet due to rain during the night. The next day the sun shines brightly. Do you think the changes, which have occurred in the cement, could be reversed?

Answer: No. It is an irreversible change

CBSE Class 6 Science Chapter 6 Changes around Us Additional Questions

CBSE Class 6 Science 

Chapter 6: Changes around Us

Additional Questions



  1. What is mean by slow and fast changes. Explain with examples
  2. What is mean by reversible changes and irreversible changes. Explain with examples

Answers

  1. Changes which takes short period of time to occur are called fast changes. Examples of fast changes are blowing of a balloon, evaporation of water, melting of ice cream etc. Where as the changes takes a long period of time to occur  are called slow changes. Examples of slow changes are growing of plants and change of seasons
  2.  The changes which can be reversed are called reversible changes. Example for reversible changes are evaporation of water, folding of paper to make aeroplane etc. Where as the changes that cannot be reversed are called irreversible changes. Example of irreversible changes are burning of paper, formation of curd from milk etc are irreversible changes

Tuesday, 19 June 2018

CBSE Class 6 Science Chapter 6 Changes around Us Fill in the blanks

CBSE Class 6 Science 

Chapter 6: Changes around Us

Fill in the blanks


  1. Evaporation is a -----------------process
  2. --------------is the opposite process of evaporation.
  3. Metal rim is put on a wooden wheel of a cart by ------------
  4. When the metal is heated, it ----------------
  5. Contraction is reverse process of  -----------------

Answers


  1. reversible
  2. Condensation
  3. heating
  4. expands
  5. Expansion


CBSE Class 8 Mathematics Chapter 2: Linear Equations in one variable Fill in the blanks

CBSE Class 8 Mathematics Chapter 2: Linear Equations in one variable Fill in the blanks The expression which represents ...