-
The equilibrium constant Kc is not dimensionless
The equilibrium constant Kc is a fundamental quantity in solving chemical equilibrium problems.
Many secondary school chemistry textbooks use a dimensionless concentration fraction, which they usually represent with the symbol K. Both the …Translated by
Downloadable resourceTeacher -
Astronomy: Spaghettification
This digital exercise will help you learn more about astronomy. While completing the multiple choice questions and fill-in exercises you will learn more about:
- spaghettitification,
- spectral class,
- spectroscopic double stars,
- radiation wreath, …
Translated by
Interactive exerciseOther function -
Astronomy: Scintillation
This digital exercise will help you learn more about astronomy. While completing the multiple choice questions you will learn more about:
- scintillation,
- flashes of light,
- reflection,
- refraction waves.
Translated by
Interactive exerciseOther function -
Astronomy: Torino scale
This digital exercise will help you learn more about astronomy. While completing the multiple choice questions and fill-in exercises you will learn more about:
- Torino scale;
- near-Earth objects;
- detection;
- recent near-Earth objects.
Translated by
Interactive exerciseOther function -
Astronomy: Big Bang 4
This digital exercise will help you learn more about astronomy. While completing the multiple choice questions you will learn more about:
- cosmic background radiation;
- COBE;
- WMAP;
- singularity;
- inflation and expansion;
- stars arise;
- dark matter;
- ...
Translated by
Interactive exerciseOther function -
Astronomy: Big Bang 3
This digital exercise will help you learn more about astronomy. While completing the multiple choice questions you will learn more about:
- cosmic background radiation;
- COBE;
- WMAP;
- singularity;
- inflation and expansion;
- stars arise;
- dark matter;
- ...
Translated by
Interactive exerciseOther function -
Efficiently develop websites with Brackets: Learning sheets
These learning sheets are designed to supplement the Efficiently Developing Websites with Brackets course from Katholiek Onderwijs Vlaanderen. The emphasis is on the following matters: the innovations that HTML5 brought with it on the one hand, …
Translated by
Downloadable resourceStudent (teacher training) -
Seterra Geography: Blind map exercises
With the exercises on this website you can practice continents, countries, rivers, capitals, rivers on a blind map.
After selecting a card, you must click on what is requested by time.
Translated by
Interactive exercise (3)Teacher -
Astronomy: Movement
This digital exercise will help you learn more about astronomy. While completing the multiple choice questions and fill-in exercises you will learn more about:
- movement in the sky;
- orbit celestial bodies;
- leap year;
- time reckoning;
- seasons;
- ...
Translated by
Interactive exerciseOther function -
Astronomy: Zenith
This digital exercise will help you learn more about astronomy. While completing the multiple choice questions and fill-in exercises you will learn more about:
- zenith,
- nadir,
- zenithal hourly rate,
- zenith line,
- gravitational lens,
- crescent …
Translated by
Interactive exerciseOther function -
Astronomy: End of the Universe
This digital exercise will help you learn more about astronomy. While completing the multiple choice questions you will learn more about:
- chronology universe;
- dark matter;
- Hubble constant;
- universe finite or infinite;
- ...
Translated by
Interactive exerciseOther function -
Astronomy: Big Bang 2
This digital exercise will help you learn more about astronomy. While completing the multiple choice questions you will learn more about:
- cosmic background radiation;
- COBE;
- WMAP;
- singularity;
- evolution universe;
- creation of stars;
- dark matter; …
Translated by
Interactive exerciseOther function