1 - 3 van 3 bronnen weergeven

The Earth's Magnetic Field

The Earth behaves like a giant bar magnet and as such there is a magnetic field present around it. The Earth’s magnetic field is thought to be caused by flowing liquid metals in the outer core of the planet which causes electric currents and a magnetic field.

Onderwerp en thema
Form 2
Physics
Magnetism
Earth's magnetic field
Type bron
Werkbladen en klassikale activiteiten
Taal
English
Uitgever
Department of Higher Education
Publicatiedatum
No date
Schepper/Auteur
Leigh Kleynhans
Deelnemer
Michael Atkinson
Trefwoord
Magnetic Field
North Pole
South Pole

pH Scale

Outcomes:

  • Determine if a liquid is acidic, basic, or neutral
  • Place acids or bases in relative order
  • Describe on a molecular scale, with illustrations, how the water equilibrium varies with pH
  • Determine concentration of hydroxide, hydronium and water at a given pH
  • Relate liquid color to pH
  • Predict (qualitatively and quantitatively) how dilution and volume will affect the pH and concentration of hydroxide, hydronium and water
Onderwerp en thema
Form 1
Biology
Introduction to biology
The biology laboratory
Type bron
Simulatie
Taal
English
Uitgever
pHET Interactive Simulations
Publicatiedatum
No date
Schepper/Auteur
Yuen-ying Carpenter (lead)
Trefwoord
pH
Dilution
Concentration
Acids
Bases

Trigonometric Functions of Special Angles

An online application to test your knowledge of evaluating trigonometric functions of special angles.

Onderwerp en thema
Form 2
Mathematics
Trigonometry
Trigonometric ratios of special angles
Type bron
Beoordelingen / Tests / Examenpapieren
Taal
English
Uitgever
GeoGebra
Publicatiedatum
No date
Schepper/Auteur
Angel Manuel Gonzalez Guillen
Trefwoord
Trigonometric Functions of Special Angles
Trigonometry