To understand that the length of a shadow is determined by the position
of the Sun in the sky.
Concepts: A shadow always falls away from the light source.
If the Sun is in the eastern sky, then the shadow falls west, if the Sun
is in the western sky, the shadow falls east. The exact directions will
vary as the Sun moves across the sky. The length of a shadow depends on
the height of the Sun in the sky- the higher the Sun, the shorter the
shadow, the lower in the Sun is in the sky, the longer the shadow.
1. Students will go outside on a clear and sunny day to make observations
and collect data on their shadows.
2. Students will work in pairs to measure their shadows and record
the length on the data table with meter sticks.
3. A student will stand still as the partner draws and measures
the shadow and record the length and the direction.
4. Make observations and collect data at different times of the
day for a week for all the different seasons and draw conclusions.
1. What do you know about shadows?
2. How are shadows made?
3. What observations can you make after collecting the data?