Utangulizi wa Mabadiliko ya uteuzi asili - Introduction to Evolution and Natural Selection
Description

 

Introduction to evolution, variation in a population and natural selection

Language
Swahili
Resource Type
Publisher
KhanAcademyKiswahili
Publication Date
Creator/Author
KhanAcademyKiswahili
Density
Description

Outcomes:

  • Describe how the concept of density relates to an object's mass and volume.
  • Explain how objects of similar mass can have differing volume, and how objects of similar volume can have differing mass.
  • Explain why changing an object's mass or volume does not affect its density (ie, understand density as an intensive property).
  • Measure the volume of an object by observing the amount of fluid it displaces.
  • Identify an unknown material by calculating its density and comparing to a table of known densities.
Language
English
Resource Type
Publisher
pHET Interactive Simulations
Publication Date
Creator/Author
Diana López Tavares
Jonathan Olson
pH Scale
Description

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
Language
English
Resource Type
Publisher
pHET Interactive Simulations
Publication Date
Creator/Author
Yuen-ying Carpenter (lead)
Colour Vision
Description

Outcomes:

  • Determine what color the person sees for various combinations of red, green, and blue light.
  • Describe the color of light that is able to pass through different colored filters.
Language
English
Resource Type
Publisher
pHET Interactive Simulations
Publication Date
Creator/Author
Bryce Gruneich (lead)
Kathy Perkins (lead)
Natural Selection
Description

Outcomes:

  • Determine which mutations are favored by the selection agents of predators and food variety and which mutations are neutral.
  • Describe which traits change the survivability of an organism in different environments.
  • Experiment with environments which produce a stable population of bunnies, a population that dies out, and a population that takes over the world.
  • Track genes through multiple generations.
  • Compare how dominant and recessive genes get passed onto offspring.
Language
English
Resource Type
Publisher
pHET Interactive Simulations
Publication Date
Creator/Author
Amanda McGarry (lead design)
Chris Malley