Category: Science

How do we get day and night?



A practical demonstration, using visual aids, to show how the Sun shines on the Earth and how the Earth rotates to create day and night. The demonstrator talks about the Sun rising in the east and setting in the west, and the effect on the length of shadows created at different times of the day.

This clip could be used as a part of a topic about Earth and space. After showing the clip, pupils could simulate the same investigations with globes, torches and Lego. They could record an explanation of why there is day and night, why the Sun rises in the east and sets in the west and how shadows are formed.

On a sunny day, pupils could record their shadows on the playground at hourly intervals to track how the shadows change shape and direction. Pupils could prepare a presentation on what they have found out and present it to another class or in assembly.


How do we get day and night? by bbc.co.uk

All Systems Go… Systems in the human body



All Systems Go... Systems in the human body
All Systems Go by sciencenetlinks.com

Helps students to understand that there are different systems within the body and that they work independently and together to form a functioning human body.

In order to be able to do this lesson, students should understand that most items are composed of different parts and that an item may not work if its parts are missing. Also, they should know that an assembly of parts can perform functions that the single parts cannot perform alone.

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Organs of the Human Body



Organs of the Human Body

Organs of the Human Body by bbc.co.uk

This interactive depiction of the human organs enables pupils to click on each organ in turn and to read about its function, its position and its physical location.

There is also an option to Organise the Organs – an interactive activity in which pupils use the mouse to rotate an image if any given organ and then drag it into its correct position.

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Pompeii: The Last Day



Pompeii: The Last Day – Youtube Video embedded here

On 24 August AD79, the sleeping giant Mount Vesuvius erupted with horrifying force, destroying the prosperous Roman cities Pompeii and Herculeneum.

Their inhabitants were subjected to 24 hours of untold horror. Four million tonnes of pumice, rock and ash rained on the towns, suffocating the life out of the cities, and burying alive those who had been unable to flee.

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Volcano Animation



Volcano animation – youtube embedded here

The animation shows eruption, and the processes leading up to the eruption, of a volcano. It explains that pressure of gases builds up underground until, eventually, it becomes so great that there is a violent explosion hurling dust and debris in to the sky and the surrounding area.

As the pressure is released the remaining gases in the magma (molten rock) cause lava to flow out and down the side of the volcano destroying everything in its path. Eventually the lava cools and forms a solid plug and the process begins again.

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