Year 4 went on a trip to the Dewa Roman Experience in Chester. We all dressed as Romans. Not only were our costumes a hit at the Dewa Center but many tourists stopped to take our photo as we marched through Chester. We looked GOOD…
We were fierce in our training session!
Look at us in formation!!
We found out that sound waves cause vibrations in our eardrums.
A big enough sound wave can even make some objects move.
We tested this out by using a tube with a small hole in one and plastic covering the other. We tapped the plastic end and saw that it made the Pom Pom move!
We didn’t think it would work with a bigger object as it would be too heavy.
Today for Class 4’s enterprise it was Class 5’s chance to come and take part in an experiment. The experiment was to see if they could make the worms wriggle and they succeeded.
First they put the worms into bicarbonate of soda and water for 30 minutes.
Next they got a glass half full of vinegar and placed the worms inside.
The mixture started to fizz and sure enough the worms began wriggling.
This was so much fun and we found out that mixing bicarbonate of soda with acidic vinegar creates bubbles of carbon dioxide gas. As the soda solution has soaked into the gummy worm, tiny bubbles form on its surface when you drop it into vinegar. The bubbles grow big enough to lift the worm.
Year 4 have been experimenting curtains today.
The children were given a scenario;
‘In the summer the sun rises before I need to get up. The light from the window wakes me up and I can’t get back to sleep. I want to buy some new curtains to block out the sunlight, can you help me to decide which fabric will be best?’
The children used the bear cave to explore three different fabrics. They had a white fabric, a purple thicker fabric and a black fabric that was even thicker. They found out some new tricky words, transparent, translucent and opaque and the meaning of them
– Transparent materials let light travel through them in straight lines.
– Translucent materials let some light through, but they scatter light in all different directions.
– Opaque materials do no let any light travel through them.
The children used torches to shine through the different materials and found out that the black material was the most suitable as it didn’t let any light through.
The children wrote these down and then made posters to advertise the blackout curtains based on the experiment. The children had great fun doing this as they included their scientific facts within the posters.
It is safe to safe we are enjoying science week.