ICSE Class 7CISCE
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Question Bank Solutions for ICSE Class 7 - CISCE - Chemistry

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Chemistry
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Fill in the blank :

The state of matter with definite volume and definite shape is called ..........

[1] Matter and Its Composition
Chapter: [1] Matter and Its Composition
Concept: Definition of Matter

Fill in the blank :

The substances which can flow are called..............

[1] Matter and Its Composition
Chapter: [1] Matter and Its Composition
Concept: Definition of Matter

Name the terms for the change of a solid into liquid.

[1] Matter and Its Composition
Chapter: [1] Matter and Its Composition
Concept: Definition of Matter

Tick the most appropriate answer.

Rising and setting of the sun at a given place is a

  1. periodic change.
  2. undesirable change.
  3. physical change.
  4. reversible change
[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

 Name the terms for the particles of matter which may or may not have independent existence.

[1] Matter and Its Composition
Chapter: [1] Matter and Its Composition
Concept: Definition of Matter

Tick the most appropriate answer.

Photosynthesis requires

  1. heat energy.
  2. wind energy,
  3. sunlight.
  4. sound energy.
[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

 Name the terms for the change of vapour into a liquid.

[1] Matter and Its Composition
Chapter: [1] Matter and Its Composition
Concept: Definition of Matter

 Fill in the blank

Changes that occur in nature are called ....................

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

Match the columns.

 Column  A      Column B 
1. a change which cannot be easily reversed  a. man-made change 
2 a change that repeats itself at regular intervals b. chemical chang 
3. a change that is made by humans  c. physical change
4. a change in which the original substance cannot be obtained   d. periodic change 
5. a change where no new substance is formed  e. irreversible change 
  f . slow change

 

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

Write true or false

Burning of paper and formation of curd are reversible changes.

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

Write true or false

A natural change can also be a desirable change.

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

Write true or false

Deforestation is a man-made change.

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

Write true or false 

Decomposition of leaves is a fast change.

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

Write true or false 

Dissolving of solute in a solvent and rusting of iron are both physical changes.

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

Photosynthesis cannot take place at night.

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

Name two reversible changes.

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

What are man-made changes ?

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

A physical change is temporary. Explain.

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

State the various conditions that favour the process of evaporation.

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes

Solve this crossword by using the clues that follow-

Across
1. Energy in the form of sunlight is absorbed by the green plants in this process.
4. The reddish-brown substance formed over iron in the presence of oxygen and moisture.
5. This change is permanent and irreversible.
6. The process in which a solid directly changes into gaseous state.

Down
1 . It is the change that takes place in case of swinging pendulum of a clock. –
2. Occurrence of this is a non-periodic change as well as a natural change.
3. It is a physical change.

[2] Physical and Chemical Changes
Chapter: [2] Physical and Chemical Changes
Concept: Concept of Physical and Chemical Changes
< prev 21 to 40 of 803 next > 
Question Bank Solutions for ICSE Class 7 CISCE Chemistry. You can further filter Question Bank Solutions by subjects and chapters. Solutions for most of the questions for CISCE can be found here on Shaalaa.com. You can use these solutions to prepare for your studies and ace in exams. Solving questions is a great way to practice and with Shaalaa.com, you can answer a question and then also check your answer with the solutions provided.
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