A colourful bounce ball

The ball

This picture i had take during early morning while waiting for the school gate open. That time, it was around 6 AM. Do you see the ball still round?

The ball become hard

This picture I had take after home. The ball not bouncy anymore because the shape already changed and the material become hard...

---

The ball had been inside my car since morning until i went home. So it's mean more than 8 hours!
The temperature inside the car must be high during afternoon. That why the ball changes.

So what happen if we put water bottle or food inside the car?

Especially a plastic bottle that can't stand high temperature and the plastic or container that wrapped our food.

A 2014 study by the University of Florida found that water stored in plastic bottles can be unsafe to drink after being left in a hot car.

Some bottles made from polyethylene terephthalate released the chemicals antimony and bisphenol A, or BPA, when heated. While the U.S. Food and Drug Administration deems small amounts of BPA safe, high levels can pose a health risk. Leaving water bottles in cars for extended periods of time can raise the BPA level. Info

---

That why we should use water bottles or containers which are BPA free... Especially baby milk bottles, cause had to use warm water...

By @audreyclaire