Please select a subject first
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Match the following.
| Group A | Group B |
| (1) Lungs | (a) Circulation |
| (2) Stomach | (b) Respiration |
| (3) Heart | (c) Co-ordination |
| (4) Brain | (d) Digestion |
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The stomach is like a ______.
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Name the systems that carry out the different functions of the body.
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Describe how the exchange of oxygen and carbon dioxide gases takes place in the lungs.
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Why do we call saliva a digestive juice?
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Respiration takes place because of its up and down movement.
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The process of keeping the blood flowing continuously throughout the body.
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Give reason.
The numbers of wild animals are falling day by day.
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The science that tries to understand past events is called ______.
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History is not written solely on the basis of ______.
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The calendar we use today is based on the ______.
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The period before the Common Era is known as the time ______.
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Answer the question in one sentence.
Which scientific methods are used to estimate the age of the layers of soil and the remains found in them?
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Answer the question in one sentence.
How is the first century of the Common Era written?
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What is meant by the unilinear division of time?
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What are the units of measuring time?
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Complete the chart given below.
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How were the sun and the planets in our solar system created?
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Find the names of the planets in the box below.
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Arrange the events given below in chronological order.
- Water bodies appeared on the earth’s surface.
- The sun and the planets revolving around it were created.
- Protozoa appeared in water.
- An enormous cloud of hot gases and dust was formed in space.
Concept: undefined >> undefined
