Webpages 2º ESO

EVALUATION 1

- Unit 1. Science and measurement.

• Steps of the scientific method.

• Change of units with conversion factors. Scientific notation.

• The properties of matter (quantitative and qualitative properties, extensive and intensive properties, general and specific properties).

• Density. How to calculate mass, volume and density.

- Unit 2. States of matter.

• The kinetic molecular theory. Use of this theory to explain certain phenomena.

• Changes of state. Heating and cooling graphs. Identification of melting and boiling point. Characteristics of solids, liquids and gases.

• Differences between evaporation and boiling.

- Laboratory experiences.

• Laboratory materials (function, names in English and Spanish and setups).

• How to calculate density in the laboratory.

EVALUATION 2

- Unit 3. The diversity of matter.

• Laboratory safety rules.

• Pure substances and mixtures. Homogeneous and heterogeneous mixtures. Compounds and elements. Colloids.

• Solutions: solute and solvent.

• Concentration of a solution (diluted, concentrated an saturated solution).

• Procedures for separating homogeneous mixtures: crystallisation, distillation, chromatography and extraction.

• Procedures for separating heterogeneous mixtures: centrifugation, decantation, magnetic separation, sieving and filtration.

- Unit 4. The changes in matter.

• The periodic table (idea of groups and periods). Chemical elements.

• Atomic models (Thomson, Rutherford and Böhr).

• The atom. Subatomic particles (protons, electrons and neutrons). Atomic number (Z) and mass number (A). Ions (cations and anions).

• Crystals and molecules.

• Physical and chemical changes.

• Chemical reactions. How to balance chemical reactions.

• Collision theory.

• Factors that influence the speed of a reaction.

- Laboratory experiences.

• Separation of mixtures.

• Physical and chemical changes.

EVALUATION 3

- Unit 5. Forces and motion.

• Frame of reference, trajectory, position, displacement, distance.

• Uniform rectilinear motion. Position-time graphs, speed-time graphs.

• Uniformly accelerated rectilinear motion. Speed and acceleration.

• Hooke's law.

• Net force.

- Unit 6. The forces of nature.

• Gravitational force and electric force.

• Difference between mass and weight.

• Magnetism.

- Unit 7. Energy.

• Types of energy: kinetic energy, potential energy, thermal energy, electrical energy, chemical energy, radiant energy and nuclear energy.

• The properties of energy.

Para estudiar los elementos químicos en castellano pincha aquí: https://quizlet.com/479370051/flashcards

https://quizlet.com/_7xekarx=1jqt&i=2mqhmb

Para estudiar los elementos químicos en inglés pincha aquí: https://quizlet.com/479382667/flashcards

https://quizlet.com/_7xeu17?x=1qqt&i=2mqhmb

Game to learn how to balance chemical reactions:

https://education.jlab.org/elementbalancing/

Concurso de cristalización en la escuela

https://www.ucm.es/concursocristalizacionmadrid/

Crystal Tetris

http://www.lec.csic.es/ctetris/

Concentration of a solution:

https://phet.colorado.edu/sims/html/concentration/latest/concentration_en.html

¿Por qué al hombre le fascinan los cristales desde la antigüedad?

https://cristales.fundaciondescubre.es/?page_id=153 (castellano)

https://cristales.fundaciondescubre.es/?page_id=1777 (english)

http://www.educaplus.org/game/curva-de-calentamiento-del-agua

https://phet.colorado.edu/sims/html/states-of-matter-basics/latest/states-of-matter-basics_es.html

SIMPLE MACHINES

Simple machines.

http://ed101.bu.edu/StudentDoc/Archives/ED101sp06/cjhpyo/index.html

The lever.

https://www.youtube.com/watch?v=YlYEi0PgG1g

Claw of crab:

http://www.biology.ualberta.ca/courses.hp/zool250/animations/CrabClaw.swf