What was the colour and texture of the two soil specimens that you collected during the previous activity? In which month did you pick them up? Did they smell different and can you describe the smells?
The two soil specimens would have different characteristics based on their collection location.
Soil collected near plants is typically darker in colour (brown or black) due to organic matter, while soil from areas without plants may be lighter (yellowish or reddish).
The texture of soil near plants is often softer, smoother, and more crumbly, while soil away from plants may be harder and grainier.
Soil near plants has a stronger, earthy smell due to decomposing leaves and organic matter.
Soil collected after rain would be damp and have a more intense smell compared to dry soil collected in other months.
Explanation
This question refers to Activity 1 where students collected soil from two different places - near plants and far from plants. The chapter explains that soil near plants contains more organic matter like old leaves, roots, stems, and insects, which affects its colour, texture, and smell. Students are expected to recall their observations from the activity.
Solution Steps
Soil near plants is darker (brown/black) due to higher organic matter content
Soil away from plants is lighter (yellowish/reddish) with less organic matter
Texture of soil near plants is softer, smoother, and crumbly
Texture of soil away from plants is harder and grainier
Soil near plants has a stronger earthy smell from decomposing leaves and organic matter
Soil collected after rain is damp with more intense smell compared to dry soil