Final answer:
The statement is true; lightning can travel through a tree to reach Earth despite wood being an insulator, due to the high voltage of lightning.
Step-by-step explanation:
The statement, 'True or false: Although wood is an insulator, lightning can travel through a tree to reach Earth', is true. Wood is generally an insulator, however, when a tree is struck by lightning, the electrical discharge can travel through the tree to the ground. This is because lightning carries a tremendously high voltage, which can overcome the resistive properties of wood, causing the electrical current to flow through the tree trunk to reach the earth. Therefore, it is important to avoid taking shelter under trees during thunderstorms, as they can conduct the lightning's electrical charge to the ground, posing a serious risk to nearby individuals.