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James and the Giant Peach Investigation

 

For Roald Dahl Day, we looked at James and the Giant Peach and did an investigation into how we could stop it rolling using friction.

We tried rolling a peach over several different surfaces, first predicting which we thought would slow the peach the most.

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Preservation Experimentation

 

In their adventure, the children watched clips from a programme where explorers dived down and found ancient Mayan pots preserved in caves. They wondered how these were still intact thousands of years later. They completed a science investigation to find out why.

 

The children set up an experiment using water, salt and apples. They thought that there may have been salt in the water or air to preserve the pots. One slice of apple was placed in the bowl, one was placed in water and another in salt water.

 

After a few days they saw that, matching their predictions, the apple in the salt water had been preserved the best. They wrote up their findings.

Picture 1 The apple when the experiment began...
Picture 2 The apple one week later...
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Light and Shadow

Light and Shadow 1

Part of our wartime adventure focused on our science topic of light. We first thought about the importance of light during the war or the need to block light during blackouts. The children first learnt about some key areas of light: light sources, how we see light, how light travels and the shape of shadows through an investigation outside (until the sun was blocked by clouds).

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We then completed an investigation that looked into the best materials to block light during an air raid in the Blitz. The children decided on four materials to test. They learnt about vocabulary like opaque, translucent and transparent to decipher which material would be the best and worst. They then completed the investigation and drew a table to show the results.

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Chromatography

Chromatography 1

On Friday, a high school science teacher came in to do some science with Sycamore and Willow.

 

This included some experiments involving Chromatography which involved separating the colours in several coloured pens.

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The teacher explained that chromatography was used by forensic scientists and that we would be analysing the ink on a 'ransom note' to discover who the perpetrator might be.

After being shown the chromatagram taken from the ink on the note, the children were given 4 coloured pens that had been confiscated from the suspects and had to use filter paper and a cup of water to make their own chromatagrams for comparison.

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After just a few minutes, the water traveled up the filter paper and began to separate the colours in the ink.
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The children could then compare their chromatagrams to the one from the ransom note and deduce which suspect was the kidnapper!
Picture 1 Chromatagram from 'ransom note'
Picture 2 Chromatagram from 4 pens
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