Displaying 81 - 90 of 158 Resources

Natural Selection

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.
Subject and Topic
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Resource Type
Webinars
Language
English
Publisher
pHET Interactive Simulations
Publication Date
No date
Creator/Author
Amanda McGarry (lead design)
Chris Malley
Keyword
Natural selection

Newton's first law of motion introduction

Basic primer on Newton's First Law of motion.

Subject and Topic
Form 2
Physics
Newton's law of motion
1st law of motion
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2012
Creator/Author
Sal Khan
Keyword
Newton
Laws of motion

Newton's laws of motion

Newton's Laws of Motion

Subject and Topic
Form 2
Physics
Newton's law of motion
Resource Type
Cursus
Language
English
Publication Date
2023

Newton's second law of motion

Newton's second law of motion is F = ma, or force is equal to mass times acceleration. Learn how to use the formula to calculate acceleration.

Subject and Topic
Form 2
Physics
Newton's law of motion
2nd law of motion
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2012
Creator/Author
Sal Khan
Keyword
Laws of motion
Second Law of Motion
Newton

Newton's third law of motion

Learn about Newton's third law of motion, which states that for every action there is an equal and opposite reaction. Look at multiple examples that illustrate this law, including pushing a block on ice, pushing against a desk, walking on sand, how rockets work, and how an astronaut could save themselves from drifting in space.

Subject and Topic
Form 2
Physics
Newton's law of motion
3rd law of motion
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2012
Creator/Author
Sal Khan
Keyword
Third Law of Motion
Laws of motion
Motion
Newton

Ohm's Law

  • Predict how current will change when resistance of the circuit is fixed and voltage is varied.
  • Predict how current will change when voltage of the circuit is fixed and resistance is varied.
Subject and Topic
Form 2
Physics
Current electricity
Concept of current electricity
Resource Type
Simulatie
Language
English
Publisher
pHET Interactive Simulations
Publication Date
No date
Creator/Author
Michael Dubson (Developer/Lead)
Keyword
Ohm's Law
Electric current
Resistance
Voltage

Optimal angle for a projectile part 1: Components of initial velocity

You want a projectile to fly as far as possible, at which angle should you launch it? We'll start with formulas for the initial velocity.

Subject and Topic
Form 2
Physics
Motion in a straight line
Speed and velocity
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2011
Creator/Author
Sal Khan
Keyword
Initial Velocity
Projectile motion
Speed

Osmosis

Osmosis is the movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration. Osmosis helps regulate the flow of water in and out of cells, which is crucial to their function.

Subject and Topic
Form 2
Biology
Transport of materials in living things
Diffusion, osmosis and mass flow
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2015
Creator/Author
Sal Khan
Keyword
Osmosis

Overview of animal and plant cells

Overview of animal and plant cells. Topics include cell walls, vacuoles, chloroplasts, peroxisomes, lysosomes, mitochondria, etc.

Subject and Topic
Form 1
Biology
Cell structure and organisation
Plant and animal cells
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2015
Creator/Author
Sal Khan
Keyword
Animal cell
Plant cell

Phases of meiosis II

Meiosis is a process that creates sex cells (gametes) with half the number of chromosomes of the parent cell. Meiosis has two stages: meiosis I and meiosis II. In meiosis I, homologous chromosomes pair up and exchange genetic material (crossing over). In meiosis II, sister chromatids separate, creating four haploid cells.

Subject and Topic
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2015
Creator/Author
Sal Khan
Keyword
Meiosis