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In this course you will learn about:
- Archimedes discovery.
- Why some objects float and others sink.
- Buoyant force.
- Archimedes principle.
In this course you will learn about:
These three short online lessons discuss asteroids, comets and meteors.
This online resource discusses the distribution of earth's water.
These two short online tutorials discuss how the earth rotates and then the earth's revolutions.
In the first URL, the YouTube video explains why earth has spring, summer, autumn and winter seasons. The second URL summarizes the key takeaway points.
This online tutorial will explain the earth's shape and its hemispheres.
There are many different processes and phenomena that emit electromagnetic radiation. Humans have taken advantage of many of these processes to develop technologies that use electromagnetic radiation.
This YouTube video explains how to calculate an irregular area on a map.
This YouTube video explains how to calculate a regular area on a map.
This online article delves into our the sun and planets were formed.