塩類風化に関する実験を取り入れた「太陽系の天体」の授業試行

抄録

The following experiment and observations were carried out in the 3rd year junior high school lesson on “Solar System Objects”.

First, students soaked the salt-weathered green tuff in water and observed the phenomenon of the green tuff collapsing to model salt weathering on Earth.

Then, students observed photographs of rocks presumed to have been broken by salt weathering on Mars and Earth and discussed similarities in weathering patterns.

Lastly, students considered the weathering that might occur on Mercury and Venus based on their knowledge of the planetary environments.

As a result of conducting this lesson, students showed high interest in the weathering experiment, weathering on planets, the importance of astronomical rock investigations, and Mars. The significance and effectiveness of conducting the experiment on salt weathering in the lesson on “Solar System Objects” are thought to have been confirmed.