All that we see

Tracing the Invisible

The teaching unit “Tracing the Invisible” explains the workings of a satellite which uses the light reflected by the surface of the earth for image acquisition and also factors in wavelengths outside of the range of the visible light. In addition to an understanding of the physical contents, the pupils get to know diverse aspects of remote sensing. A virtual professor accompanies the pupils while they are exploring the electromagnetic spectrum.

Form
7
Time required
2 - 3 lessons
Level
2: easy
Recommended Prior Knowledge

none

Authors

Roland Goetzke

Henryk Hodam

Kerstin Voß

Topics

absorption
electromagnetic spectrum
infrared
light
reflection

Goals

The pupils ought to be able to name the reflection patterns of different objects.

Distinguish between the terms "reflection" and "absorption".

The interrelation between the colour and the reflection attributes of an object will be explained.

They can describe the electromagnetic spectrum as well as wavelengths outside of the range of the visible light.

The pupils gain basic knowledge of the transition of reflection values into picture information.

The pupils ought to be able to describe the formation of false colour images.