Displaying 1 - 10 of 10 Resources

Biodiversity and natural selection

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

Subject and Topic
Form 2
Biology
Balance of nature
The natural environment
Resource Type
Video
Language
English
Publisher
California Academy of Sciences
Publication Date
2014
Creator/Author
California Academy of Sciences
Keyword
Biodiversity
Natural selection

How to calculate the irregular area on a map

This YouTube video explains how to calculate an irregular area on a map.

Subject and Topic
Form 1
Geography
Mapwork
Quantitative information on maps
Resource Type
Video
Language
English
Publisher
Fish
Publication Date
2018
Creator/Author
Fish
Keyword
Area on a map
Calculate irregular area on a map
Maps

How to calculate the regular area on a map

This YouTube video explains how to calculate a regular area on a map.

Subject and Topic
Form 1
Geography
Mapwork
Quantitative information on maps
Resource Type
Video
Language
English
Publisher
Everything Geography
Publication Date
2023
Creator/Author
Everything Geography
Keyword
Area on a map
Maps
Calculate regular area on a map

Maps

This online tutorial guides you through what information a map shows, map legends and the different types of maps which are available.

Subject and Topic
Form 1
Geography
Mapwork
Map concepts
Resource Type
Studieboeken
Language
English
Publisher
CK-12
Publication Date
2018
Creator/Author
CK-12
Keyword
Maps

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.

Subject and Topic
Form 2
Biology
Balance of nature
Food chain and food web
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2022
Creator/Author
Sal Khan
Keyword
Food webs

Topographic and geologic maps

This online tutorial will provide you with some guidelines on how to interpret both topographic and geologic maps.

Subject and Topic
Form 1
Geography
Mapwork
Components of a map
Resource Type
Studieboeken
Language
English
Publisher
CK-12
Publication Date
2019
Creator/Author
CK-12
Keyword
Maps
Topographic maps
Geologic maps

Trigonometric Ratios

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

  • Define and use the trigonometric ratios of cosθ, sinθ and tanθ.
  • Calculate the trigonometric ratios in each quadrant of the Cartesian plane.
  • Calculate the value of expressions containing trigonometric ratios.
Subject and Topic
Form 2
Mathematics
Trigonometry
Trigonometry ratios
Resource Type
Cursus
Language
English
Publisher
Pressbooks
Publication Date
2020
Creator/Author
Dylan Busa
Keyword
Trigonometry
Trigonometric ratios

Trigonometry

Outcomes

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

  • Define and use the trigonometric ratios of  cosθ,  sinθ, and  tanθ.
  • Calculate the value of expressions containing trigonometric ratios with a calculator.
  • Calculate the value of expressions containing trigonometric ratios without a calculator.
  • Work with trigonometric tables.
  • Solve problems in 2 dimensions involving angles of elevation and depression
Subject and Topic
Form 2
Mathematics
Trigonometry
Trigonometry ratios
Resource Type
Cursus
Language
English
Publication Date
2023

Worked example: analysing a generic food web

We can analyse the arrows in a food web to identify producers, primary consumers, secondary consumers, and decomposers.

Subject and Topic
Form 2
Biology
Balance of nature
Food chain and food web
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2022
Creator/Author
Sal Khan
Keyword
Food webs

Worked example: analysing an ocean food web

We can analyse the arrows in a food web to identify producers, primary consumers, secondary consumers, and decomposers.

Subject and Topic
Form 2
Biology
Balance of nature
Food chain and food web
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2022
Creator/Author
Sal Khan
Keyword
Food webs