Final answer:
True, lightning can travel through a tree to reach Earth despite wood being an insulator because the extreme voltage of lightning can overcome the insulating properties of wood.
Step-by-step explanation:
The statement 'Although wood is an insulator, lightning can travel through a tree to reach Earth' is true. While wood is generally an insulator and does not conduct electricity well, the intense electrical power of lightning can cause a breakdown of the insulating properties. When lightning strikes a tree, the immense voltage can ionize the air and the sap and moisture inside the tree, creating a conductive path. This allows the lightning to travel through the tree to reach the ground, which can unfortunately result in damage to the tree.