Asteroids, comets and meteors
These three short online lessons discuss asteroids, comets and meteors.
These three short online lessons discuss asteroids, comets and meteors.
This online resource discusses the distribution of earth's water.
This YouTube video will guide you through a fun activity where you will draw the earth's continents and oceans.
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.
Other objects in the solar system are discussed in this online textbook viz. asteroids, meteorites, comets and dwarf planets.
This online resource discusses the importance of the ocean, the layers and composition of the ocean and how it moderates climates.
This online resource investigates the features and topology of the ocean floor, the effects of wave erosion and the landforms created by coastal depositions.
We can analyse the arrows in a food web to identify producers, primary consumers, secondary consumers, and decomposers.
We can analyse the arrows in a food web to identify producers, primary consumers, secondary consumers, and decomposers.