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SAI ANGAN
                                        Class -3                                    Science

               Name:                                       Sec:                                Date:

                                       Movement of the Earth – Revolution

               Q1. State true and false:

                   a.  The Earth follows a zig-zag path during its journey around the sun.
                   b.  The path on which the Earth moves is called the orbit.
                   c.  The Earth takes 24 hrs to complete one revolution around the sun.
                   d.  One year = 365 ¼ days.
                   e.  Revolution causes day and night.

               Q2. Fill in the blank with the correct word given below.

                 Revolution        sun        orbit       365 ¼ days

                 4 years           leap year
               The Earth moves along a path around the ________. This path is known as an __________.
               One complete trip on this path around the sun is known as one _______________. The
               Earth takes___________________ to complete its journey around the Sun. Every
               _________________, we take the extra 1/4 days from the previous years, combine them
               and add an extra day to the calendar called _____________________________.

               Q3. Write the difference between axis and orbit with a diagram.
















               Q4. What causes the change of seasons? Explain.


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