Earth and the Sun
Why do we
have day and night ? Day and night are caused by the Earth spinning on its axis once every 24 hours. One day is made up of one complete rotation of the Earth. For example, Sunday or a Monday.
Get a torch and a ball to find out why we
get night and day. Point the torch towards the ball and rotate it from left to What
do you see ?
Click
here to find out more about the Sun
Try
this yourself!
right (west to east).
A year is
the time taken for the Earth to journey once around the Sun. Q. How many days does it take for
the earth to complete one journey round the Sun? Q. How many times does the Earth
spins on its axis while it makes this journey? Q. How many months are there in
one year? Q. The Earth travels in an ellipse.
Why does it not travel in a full circle? Q. Why do we have shorter days during winter and longer days during summer? Q. Is the the Sun higher in the
sky during winter or summer ? Use a lamp (or a torch) and a ball to
investigate how the Earth moves in orbit round the Sun - Hint!.....keep the
tilt of the Earth at the same angle all the time.
Continue... SeasonsWhat is a year ?
Try
this yourself!
Tags: Earth and Sun, Earth, Sun