Density

Beschrijving

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.
Taal
English
Type bron
Uitgever
pHET Interactive Simulations
Publicatiedatum
Schepper/Auteur
Diana López Tavares
Jonathan Olson

pH Scale

Beschrijving

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
Taal
English
Type bron
Uitgever
pHET Interactive Simulations
Publicatiedatum
Schepper/Auteur
Yuen-ying Carpenter (lead)

Eating & Exercise

Beschrijving

Outcomes:

  • Design a diet and exercise regimen.
  • Estimate the number of calories required for basic survival.
  • Estimate the number of calories burned by exercise.
  • Explain how heart health depends on diet and exercise.
  • Explain how Body Mass Index (BMI) depends on weight and height.
Taal
English
Type bron
Uitgever
pHET Interactive Simulations
Publicatiedatum
Schepper/Auteur
Sam Reid (Developer)

Colour Vision

Beschrijving

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.
Taal
English
Type bron
Uitgever
pHET Interactive Simulations
Publicatiedatum
Schepper/Auteur
Bryce Gruneich (lead)
Kathy Perkins (lead)

Natural Selection

Beschrijving

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.
Taal
English
Type bron
Uitgever
pHET Interactive Simulations
Publicatiedatum
Schepper/Auteur
Amanda McGarry (lead design)
Chris Malley

Urination

Beschrijving

Micturition (peeing) starts with urine flowing from the kidneys to the bladder via ureters. The bladder expands using transitional epithelium. Urine exits through the urethra, controlled by internal and external urethral sphincters. Ureters prevent backflow, thereby reducing infection risk

Taal
English
Type bron
Uitgever
Khan Academy
Publicatiedatum
Schepper/Auteur
Raja Narayan

Skeletal structure and function

Beschrijving

Skeletons support and protect our bodies. Bugs have exoskeletons outside their bodies, while humans have endoskeletons inside. Our bones are in axial (skull, ribcage, spine) and appendicular (arms, legs) groups. Bone marrow makes blood cells; more specifically, red marrow makes blood and yellow marrow stores fat. 

Taal
English
Type bron
Uitgever
Khan Academy
Publicatiedatum
Schepper/Auteur
Tracy Kim Kovach