🧪 The "Magical" Leak-Proof Bag! 🧪

Our P2 scientists have been busy investigating materials and their amazing properties! This week, we braved the "Leak-Proof Bag" experiment to see if we could poke sharp pencils through a bag full of water without making a splash. 💦

What happened?
The children were amazed to find that even with multiple pencils pushed all the way through, the bag stayed completely dry!

The Science Bit:
It might look like magic, but it’s actually chemistry! The plastic bags are made of polymers—long, flexible chains of molecules. When the sharp pencil pushes through, these stretchy chains wrap themselves tightly around the pencil to create a temporary seal, keeping the water safely inside.

However, our young researchers discovered that as soon as you pull the pencils out, the "magic" ends and the water escapes!

Well done to our curious P2s for their fantastic predictions and scientific observations.