Three cool physical changes:
1. Flat soccer ball
You add air into the ball to inflate it back up.
2.Flower mixes with milk
My mom was making cake and when she put the flower with the milk it became a liquid.
3.When water evaporates.I left a bowl of water outside in the sun and it evaporated and became a gas.
Three cool chemical changes:
1.putting fruit in the compost pile
My mom puts all the fruit in the compost pile and it turns to dirt.
2.Leaving bread out becomes moldy.
I found bread on the table that was moldy. The mold consumes the sugar,water, and minerals in the bread.
3.Car battery acid to start a car engine
The chemical reaction when the battery discharges, converts positive and negative electrodes to led sulphate.
Thanks,
Yousef Sindi
Your second physical change was really interesting, like all the other ones. You came up with these changes, didn't copy other people's changes, or you didn't write the changes we discussed in class, but you had to tell why you classified each change as a physical or chemical.
ReplyDeleteI think that you should add a little bit more about the Flat soccer ball one. You didn't really give any reasons why it was a physical change, but overall you did good.
ReplyDelete-Taha