Learn about graphs. In this third part introductory video we will look at the parallel and perpendicular lines.
Both parallel and perpendicular lines are found everywhere; just think of a car park.
Parallel lines have the same gradient; they go in the same direction and will never ever cross. i.e. They have the same steepness.
Perpendicular lines cross each other at 90 degrees (right angles). One will always have a positive gradient and the other will always have a negative gradient.
We will look at finding the gradients and equations of parallel and perpendicular lines in future videos.
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Charles Darwin was a keen naturalist and geologist who made detailed observations about the natural world.
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This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind FuseSchool. These vi
In nature, all organisms compete with each other for resources in order to survive. Competition between members of the same species is what makes organisms evolve.
This theory of competition and ‘survival of the fittest’ is called Natural Selection, and was originally proposed by Charles Darwin i
All living organisms are made up of cells - they are the basic building blocks of life. There are two important categories of cells: plant cells and animal cells.
In this video we look at animal cells in more detail.
Animal cells are the type of cell that make up our bodies... and the bodies of al