Pesando las cosas: materia y masa

The video tutorial explains that everything visible and tangible is made of matter, which can exist as solids, liquids, or gases. Matter is defined as anything that occupies space and has mass. The concept of mass is introduced as the amount of matter in an object, with examples comparing the mass of different objects like rocks, trucks, and bikes. The video concludes with a brief introduction to measuring mass.

Why do different objects have different amounts of mass?

What examples can you provide to illustrate the concept of mass?