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

Fractional Exponents to Radicals

Use the dynamic worksheet to practice simplifying expressions with fractional exponents, rewriting them as radicals.

Subject and Topic
Form 2
Mathematics
Exponents and radicals
Radicals
Resource Type
Werkbladen en klassikale activiteiten
Language
English
Publisher
GeoGebra
Publication Date
2019
Creator/Author
Audrey McLaren
Steve Phelps
Keyword
Exponents
Fractional Exponents
Radicals

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

Radicals and Rational Exponents

In this section, you will:

  • Evaluate square roots.
  • Use the product rule to simplify square roots.
  • Use the quotient rule to simplify square roots.
  • Add and subtract square roots.
  • Rationalize denominators.
  • Use rational roots.
Subject and Topic
Form 2
Mathematics
Exponents and radicals
Radicals
Resource Type
Cursus
Language
English
Publisher
openstax
Publication Date
2017
Creator/Author
Jay Abramson
Keyword
Exponents
Radicals
Rational Exponents

Simplifying Radicals

Exercises requiring expressions to be re-written in 'Simple Radical Form'.

Subject and Topic
Form 2
Mathematics
Exponents and radicals
Radicals
Resource Type
Werkbladen en klassikale activiteiten
Language
English
Publisher
GeoGebra
Publication Date
2020
Creator/Author
Courtenay Fullerton
Tim Brzezinski
Keyword
Exponents
Radicals

Structure and composition of the sun

This YouTube video investigates the structure and composition of the sun.

Subject and Topic
Form 1
Geography
The solar system
The sun
Resource Type
Video
Language
English
Publisher
Launch Pad Astronomy
Publication Date
2017
Creator/Author
Launch Pad Astronomy
Keyword
Sun
Composition of the sun
Structure of the sun

The sun

This online resource investigates the internal structure, outer layers and surface features of the sun.

Subject and Topic
Form 1
Geography
The solar system
The sun
Resource Type
Studieboeken
Language
English
Publisher
SLCC Pressbooks
Publication Date
2020
Creator/Author
R Adam Dastrup
Keyword
Sun

Sun

These four short online lessons cover the following:

  • What is the sun?
  • Interior of the sun
  • Outer layers of the sun
  • Surface features of the sun
Subject and Topic
Form 1
Geography
The solar system
The sun
Resource Type
Cursus
Language
English
Publisher
CK-12
Publication Date
2023
Creator/Author
CK-12
Keyword
Sun
Structure of the sun
Composition of the sun

Links

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