When water and organic matter mix, they form a slightly acidic solution that breaks down rocks in the soil, like the vinegar in Activity 3.
(they; form; a slightly acidic solution that breaks down rocks in the soil, like the vinegar in Activity 3; T:When water and organic matter mix) (a slightly acidic solution; breaks down; rocks; L:in the soil, like the vinegar in Activity 3)
they a slightly acidic solution
form breaks down
a slightly acidic solution that breaks down rocks in the soil, like the vinegar in Activity 3 T:When water and organic matter mix
rocks L:in the soil, like the vinegar in Activity 3