Living nature

Topic: Soil and stone
Subtopic: Soil textures and soil tests
Age: 7 - 12
Holistic Planning: Hand
Details: Test soil to find out if it's acidic or alkaline. Use a pH kit and/or do a home test e.g. add 2 spoonfuls of soil to a jar, add vinegar, does it react? If so you have alkaline soil. Add 2 spoonfuls of soil to another jar, add distilled water and baking soda - does it fizz? If so you have acidic soil.