9/18 blog homework

We learned that light travles in a straight path and you cannot see without light. We also learned that many light rays bounce off of one point and if you shine it at an object the light bounces off that object into your eyes. We tested these by putting flour particles in the air and being able to see the light trail of a laser pointer. We now understand that we can not see without light and we discovered things in 2 weeks that took people in acient times 100 of years.