Concave Lens

During this experiment we had a lot of fun. We used a lens, fire, whiteboard, and yard stick. We put the white board about a yard away from the flame. Then we put the lens in between the flame and the white board. That made a light on the white board. We moved the lens away from the fire and the light on the white board got bigger. When we moved the lens toward the white board it got smaller. Some times the light on the board was an up side down flame. That’s because the lens is concave. That also goes along with our eyes. When we see images they go through our eyes upside down and our brain tells it to be right-side up. Then we measured out which inch the flame appeared on the white board with the yard stick. Our claim said, the light got bigger on the white board when we moved the lens away from the fire inches at a time. Our evidence said, we started moving the lens away from the fire. As we moved it the light on the white board got bigger. It looked like the flame was up side down, and it got bigger. Once the light got bigger it got dimmer, and once it got smaller it got brighter. That is what we did and learned in this experiment.