* Sunlight: Sunlight is electromagnetic radiation, a form of energy that travels as waves. It's made up of photons, which are massless particles that carry energy. Photons don't have the properties of matter, such as mass and volume.
* Gravity: Gravity is a fundamental force of nature, not a substance. It's a result of the curvature of spacetime caused by the presence of mass and energy. Gravity itself doesn't have mass or volume.
What is Matter?
Matter is anything that has mass and takes up space (volume). It's made up of atoms and molecules, which are composed of subatomic particles like protons, neutrons, and electrons.
Key Differences:
* Matter has mass, sunlight and gravity do not.
* Matter occupies space, sunlight and gravity do not.
* Matter is composed of particles, sunlight and gravity are not.
While sunlight and gravity are important forces in the universe, they are not considered forms of matter. They are fundamental aspects of the universe that influence matter but are not matter themselves.