Chemical reactions

My classes topic is chemical reactions. Chemical reactions are amazing. Chemical reactions are so cool we watched chemical reactions on youtube they looked awesome. Some chemical reactions are caused by mixing things together.

Chemical reactions make fire. Fire can be made by skimming two rocks together and the spark cause the fire. By doing that the two rocks hit together make tiny chemical reactions which makes a spark and causes the fire to light up.

Fire can also be made by rubbing two pieces of wood together one large and one small you rub the small one on top of the large one. Rubbing the wood together really fast causes heat and the heat causes the fire. The heat is a chemical reaction.

Chemical reactions can do horrible things and wonderful things. You can make your own chemical reactions with everyday things like vinegar, water, salt, alcohol and other things.  

  

   

High-powered thinking

This figure out book is all about strategies. I had to figure out how many office windows there were on a whole skyscraper. It took me a while but I got through it. One of the buildings had four hundred and seventy five windows. It took me two days to figure out that answer. I tried my hardest and I finished it.   

What a view!

This week I learn’t how to work out how to make two different strategies for one sum.  In my figure it out book we had to find out how many windows one person washed. He had washed 234 windows.

I had to find a way to solve that problem it took me two days to figure out the sum to get the right answer.