Illustrating some metaphysical problems

In this post you can find, dear students of 1º de Bachillerato, some short videos aimed to illustrate a few classic metaphysical problems as discussed in sections 2.1 to 2.7 in the booklet of our Unit 4. 

Some of them may have already been shown in class; all of them may be useful to deepen in some questions, check the relevant vocabulary or just enjoy them (?).

2.1. This is not a table:

2.1. Appearance and reality.  
2.3. Objects and properties, an introduction addressed to kids.
2.3. Universals and particulars.
2.3. Four Ways of Thinking About Abstract Objects, a bit more demanding.
2.4. Zeno's Paradoxes.
2.5. Is Time Real? Also this clip about the same topic.
2.6. Necessary and Contingent.
2.6. What is Impossibility?
2.6. Are Possible Worlds Real?
2.7. Nothingness (in Spanish).