Final answer:
The density of an object determines whether it will sink or float in water.
Step-by-step explanation:
Some heavy objects will sink in water is a true statement. Whether an object will sink or float in water depends on its density. If the object is denser than water, it will sink. However, if it is less dense, it will float.
All light objects will sink in water and No light objects will sink in water are both false statements. For example, a small piece of paper is light but can float on water because it is less dense than water.
All heavy objects will sink in water is also a false statement. Heavy objects sink in water only if they are denser than water, while some heavy objects, like boats or ships, are designed to float on water due to their shape and the principles of buoyancy.
Learn more about Floating and sinking in water