Answer:
Matter - The ball itself
Energy - the motion of the ball as they reach different height.
Explanation:
The aspect of the event which relates to matter is the ball itself being described above, this us because, the ball is a physical substance or material which possesses mass and occupies space.
The aspect which relates to energy in the event described above is the motion of the ball when bounced off the floor, changing from potential to kinetic energy depending on the height attained, at any instance, the total energy is the sum of the kinetic and potential energy, however, at maximum height, at rest, Potential energy is maximum with kinetic energy equal zero, at maximum height, kinetic energy then start to increase with height until it reaches it's the maximum height, where the direction changes, at this point kinetic energy turns to zero. Therefore, the motion of the ball and height attained relates to energy.