Displaying 21 - 24 of 24 Resources

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
Subject and Topic
Form 1
Biology
Introduction to biology
The biology laboratory
Resource Type
Simulatie
Language
English
Publisher
pHET Interactive Simulations
Publication Date
No date
Creator/Author
Yuen-ying Carpenter (lead)
Keyword
pH
Dilution
Concentration
Acids
Bases

Skeletal structure and function

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. 

Subject and Topic
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2014
Creator/Author
Tracy Kim Kovach
Keyword
Skeletal structure

Sura za Meiosisi - Phases of Meiosis

The phases of Meiosis.

Subject and Topic
Form 1
Biology
Introduction to biology
Scientific processes in biology
Resource Type
Video
Language
English
Publisher
KhanAcademyKiswahili
Publication Date
2012
Creator/Author
KhanAcademyKiswahili
Keyword
Meiosis

Urination

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

Subject and Topic
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2014
Creator/Author
Raja Narayan
Keyword
Urination