Science Class

In yesterday's science class, we discussed our fieldwork agenda. We must break into groups and teach half of the class about science. We are teaching them about physical science and physical and chemical changes. My group is going to discuss with them physical changes. We have to create our own lesson plan and design an experiment to teach the students about physical science. 

After researching, we found a website to give us an idea for an experiment to show physical change

http://www.saskschools.ca/curr_content/science9/chemistry/lesson8.html

This experiment involves ice cubes and shows a physical change when they melt. 

We are going to need 

Ice Cubes

 

Small Dishes

  Salt

A Hammer

Each ice cube is going to be place somewhere different and the students will see which ones melt fast. One will be on their desk, one in the sun, one will be sprinkled with salt, and the other one will be crushed with a hammer. After the experiment and the students have determined which melted the fastest, we will begin to explain how an ice cube melting is an example of physical change. The book defines physical change as a "change where only the physical properites are affected, that is the properties we can readily observe with our senses". We will explain the molecules are now further apart when the water is a liquid, but the basic composition of the water has not changed. It is still made up of the same arrangement of atoms of hydrogen and oxygen