Question

question 3 a piece of wood is set on fire and is allowed to burn. which change might we expect? the log would change color and texture. the log absorbs moisture from the atmosphere. the size of the log expands with the heat. the mass of the log increases.

Explanation:

When wood burns, it undergoes a chemical reaction (combustion) that transforms it. Burning wood (like a log) will char, changing its color (to black/ashy) and texture (becoming brittle/ash - like). Absorbing moisture is not a burning - related change. Most solids (including wood) contract or decompose (mass decreases via combustion, releasing gases) with heat from burning, not expand. Mass decreases as matter is released as smoke/gases. So the log changing color and texture is the expected change.

Answer:

The log would change color and texture.