1 - 10 van 14 bronnen weergeven

Biodiversity and natural selection

Patterns and processes of evolution. How evolution and natural selection are reflected in the similarities and differences of organisms. 

Onderwerp en thema
Form 2
Biology
Balance of nature
The natural environment
Type bron
Video
Taal
English
Uitgever
California Academy of Sciences
Publicatiedatum
2014
Schepper/Auteur
California Academy of Sciences
Trefwoord
Biodiversity
Natural selection

Eating & Exercise

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.
Onderwerp en thema
Form 2
Biology
Nutrition
Nutrition and food nutrient concepts
Type bron
Simulatie
Taal
English
Uitgever
pHET Interactive Simulations
Publicatiedatum
No date
Schepper/Auteur
Sam Reid (Developer)
Trefwoord
Biology
Exercise
Energy

Forces

By the end of this lesson you will be able to:

  1. Define and explain what a force is
  2. List and describe the main kinds of forces
  3. Explain the effects of a force
Onderwerp en thema
Form 1
Physics
Force
Concept of Force
Type bron
Cursus
Taal
English
Publicatiedatum
2023

Forces and Newton's Laws of Motion

saac Newton (1642–1727) was a natural philosopher; a great thinker who combined science and philosophy to try to explain the workings of nature on Earth and in the universe. His laws of motion were just one part of the monumental work that has made him legendary. The development of Newton’s laws marks the transition from the Renaissance period of history to the modern era. This transition was characterized by a revolutionary change in the way people thought about the physical universe. Drawing upon earlier work by scientists Galileo Galilei and Johannes Kepler, Newton’s laws of motion allowed motion on Earth and in space to be predicted mathematically. 

Onderwerp en thema
Form 1
Physics
Force
Concept of Force
Type bron
Studieboeken
Taal
English
Uitgever
openstax
Publicatiedatum
2020
Schepper/Auteur
Openstax
Trefwoord
Dynamics
Net Force

Forces Tutorial

Short Physics tutorial on Forces. On completion you will be able to 

  1. Define and explain what a force is
  2. List and describe the main kinds of forces
  3. Explain the effects of a force
Onderwerp en thema
Form 1
Physics
Force
Concept of Force
Type bron
Cursus
Taal
English
Uitgever
Zanzibar Ministry of Education and Vocational Trainings
Publicatiedatum
2022
Schepper/Auteur
Dylan Busa

Introduction to cellular respiration

Cellular respiration is the process by which cells derive energy from glucose. The chemical reaction for cellular respiration involves glucose and oxygen as inputs, and produces carbon dioxide, water, and energy (ATP) as outputs. There are three stages to cellular respiration: glycolysis, the Krebs cycle, and the electron transport chain.

Onderwerp en thema
Form 2
Biology
Gaseous exchange and respiration
Respiration
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2009
Schepper/Auteur
Sal Khan
Trefwoord
Cellular Respiration

Introduction to passive and active transport

Introduction to passive and active transport

Onderwerp en thema
Form 2
Biology
Transport of materials in living things
Concept of the transport of materials in living things
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2015
Schepper/Auteur
Sal Khan
Trefwoord
Passive Transport
Active Transport

Matter and energy in food webs

Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.

Onderwerp en thema
Form 2
Biology
Balance of nature
Food chain and food web
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2022
Schepper/Auteur
Sal Khan
Trefwoord
Food webs

Motion in One Dimension

In this chapter, you will learn why it is important to identify a reference frame in order to clearly describe motion. For now, the motion you describe will be one-dimensional. Within this context, you will learn the difference between distance and displacement as well as the difference between speed and velocity. Then you will look at some graphing and problem-solving techniques.

Onderwerp en thema
Form 1
Physics
Force
Concept of Force
Type bron
Studieboeken
Taal
English
Uitgever
openstax
Publicatiedatum
2020
Schepper/Auteur
Openstax
Trefwoord
Velocity
Distance
Displacement

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.

Onderwerp en thema
Form 2
Biology
Transport of materials in living things
Diffusion, osmosis and mass flow
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2015
Schepper/Auteur
Sal Khan
Trefwoord
Osmosis