Displaying 1 - 10 of 14 Resources

Cell theory

Introduction to cell theory--the idea that 1) all living things are made of one or more cells, 2) cells are the basic unit of life and 3) all cells come from other cells. Explore the roles that Hooke, Leeuwenhoek and others played in developing cell theory.

Hooke and Leeuwenhoek were two of the first scientists to use microscopes to study the microscopic world of cells. Hooke coined the term "cell" after observing the tiny compartments in cork, while Leeuwenhoek discovered a variety of living creatures in pond water, blood, and other samples. They contributed to the cell theory by suggesting that cells are the fundamental units of life and structure, and that all living things consist of one or more cells that originate from other cells by division. 

Subject and Topic
Form 1
Biology
Cell structure and organisation
Concept of cells
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2015
Creator/Author
Sal Khan
Keyword
Cells

Cells and organisms

All living things are made up of cells, which is the smallest unit that can be said to be alive. An organism may consist of one single cell (unicellular) or many different numbers and types of cells (multicellular).

Subject and Topic
Form 1
Biology
Cell structure and organisation
Concept of cells
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2022
Creator/Author
Khan Academy
Keyword
Cells

Density

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.
Subject and Topic
Form 1
Biology
Introduction to biology
Scientific processes in biology
Resource Type
Simulatie
Language
English
Publisher
pHET Interactive Simulations
Publication Date
2023
Creator/Author
Diana López Tavares
Jonathan Olson
Keyword
Density
Mass
Volume
Archimedes' Principle

Evolution Clarification Swahili

Clarifying some points on evolution and intelligent design.

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
Khan Academy
Contributor
KhanAcademyKiswahili
Keyword
Evolution
Human Evolution

Human fertilisation and early development

Overview of fertilisation and early human development. From conception leading to a zygote to blastocyst, embryo and fetus.

Subject and Topic
Form 1
Biology
Introduction to biology
Scientific processes in biology
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2017
Creator/Author
Sal Khan
Keyword
fertilisation

Introduction to the cell

Introduction to the cell.

Subject and Topic
Form 1
Biology
Cell structure and organisation
Concept of cells
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2017
Creator/Author
Sal Khan
Keyword
Cells

Mitosis

Mitosis is how cells divide! Learn what happens in all the phases of mitosis: prophase, metaphase, anaphase, and telophase.

Subject and Topic
Form 1
Biology
Introduction to biology
Scientific processes in biology
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2015
Creator/Author
Sal Khan
Keyword
Mitosis
Cells

Particle model of matter

The particle model of matter is one of the most useful scientific models because it describes matter in all three states. Understanding how the particles of matter behave is vital if we hope to understand science!

The model also helps us to understand what happens to the particles when matter changes from one state to another.

Subject and Topic
Form 1
Physics
Structure and properties of matter
Structure of matter
Resource Type
Werkbladen en klassikale activiteiten
Language
English
Publisher
Department of Basic Education
Publication Date
No date
Creator/Author
Siyavula
Keyword
Atom
Solid
Gas
Liquid

Phases of matter

In this unit, you will explore the three phases of matter and then look at the properties and differences between them. You will explore their shape, volume, and kinetic energy.

Subject and Topic
Form 1
Physics
Structure and properties of matter
Structure of matter
Resource Type
Studieboeken
Language
English
Publisher
Department of Higher Education
Publication Date
No date
Creator/Author
Emma Harrage
Contributor
Michael Atkinson
Keyword
Energy
Volume
Shape

Properties of Materials

In this unit you will learn about different materials by investigating and observing the behaviour of their properties. This will include learning about the differences between metals and non-metals; whether they are isolators or conductors of electricity and heat, whether they are magnetic, how dense they are and whether they are acidic or basic.

Subject and Topic
Form 1
Physics
Structure and properties of matter
Structure of matter
Resource Type
Studieboeken
Language
English
Publisher
Department of Higher Education
Publication Date
No date
Creator/Author
Emma Harrage
Contributor
Michael Atkinson
Keyword
Atom
Magnetized