The Biology field trip to Aberffraw enables pupils to apply practical skills while assessing the snail population on the sand dunes. They saw a variety of snails which showed genetic diversity in their coloured shells. From the collected data the pupils were able to calculate Chi-squared statistical test to see if variation was by chance alone.

After lunch on the beach they measured Marram grass on sea facing and land facing dunes. Using standard deviation for the T-test they were able to show that was a significant difference in the length of the leaves.

"We got an experience of collecting data ourselves whilst having fun" - Dan.

"I thoroughly enjoyed traversing the sand dunes, spending time with my peers and practising new skills that will be highly beneficial to my Year 13 studies" - Tom.

"This is a valuable experience I can use to prepare for the practical exam" - Jack.