javier fernández-portal díaz del río


"Busca la verdad mientras eres joven, pues si no lo haces, después se te escapará de entre las manos" (Parménides).

Thursday, December 14, 2017


Physical and chemical changes: whatch this video.

Can you differentiate a physical change from a chemical change? Try this.
Build an atom

Isotopes and atomic mass
Scale of the universe.

Elements, compounds and mixtures.  And methods of separation. Whatch this.

Build a molecule

Molecule shapes
Learning about concentration
Let's make a saturated solution
Worksheet with explanation of the way to calculate concentrations. Molarity and others.

States of Matter: Basics

Revise the Kinetic theory of Matter

Mass and atomic structure.

States of matter. Watch this video.

Ideas on the atom throughout history.

Ionic, covalent, and metallic bonds. Types of bonds VIDEO.

Balancing chemical equations
Video to revise Chemical reactions.

Click to Run