Tag Archives: STEM

P7 CSI with Ayrshire College

Science Detectives at Fenwick Primary! 🕵️‍♂️🔬

Today Ayrshire College visited and thanks to Shona, Derek and Amy,  we put our science skills to the test and discovered how real detectives use science to solve crimes!

When we arrived, we were shocked to hear that a crime had been committed at Fenwick Primary School — and it was our job to solve the mystery!

First, we learned how to use chromatography to investigate the ink from a pen found at the scene. We compared different ink samples to see if we could find a match.
Next, we became fingerprint experts! Using fingerprint analysis, we carefully examined the prints left on the pen to work out which suspect had handled it.
After that, we used microscopes to closely examine fibres left behind at the scene. We compared these fibres with clothing from our three suspects to see if we could find a connection.
We then tested the pH of the “saliva” found on a half-eaten sweet to gather even more evidence.
Finally, Shona demonstrated how to analyse the chemicals in a soil sample taken from a shoe print at the scene. This gave us another important clue!
After lots of careful investigation and teamwork, we were amazed to discover that Mr Houston was guilty! He returned the sweets and apologised for not following our school value of honesty. 😉

What a fantastic way to use our scientific skills in a real-life mystery!


P7 VexGo Robots

Today we started our first STEM Lab using the new school Vex Go kits.  We learned how to build with the kit and designed our own machines first. Mrs Ross and Mrs Conetta were very impressed with our creativity and build skills.

Working in groups, we then followed the step by step instructions to build or Base Robots. We then practised using the drive mode to move our robots around our table. After some trial and error using different driving styles it was time for competitions. We built our racing track and raced each others robots through the slalom. Well done to Olivia our racing winner this week!

We are looking forward to STEM Lab 2 next week where we will be learning to code our robots.