They also involve mathematics at an elementary level, so there is a meaningful opportunity for integration. These ideas are so pervasive that they must be mastered if your students are to be successful scientists. The vocabulary words of this section are often misused in other contexts. Be aware of possibilities to correct the student use to conform to careful definitions.
Light is a form of energy.
Place a scale on the classroom floor and have a student step on the scale. If necessary, point out that a scale is an instrument for determining the weight force of an object. Then shine a flashlight on the scale - you can even add a black cloth so that the light is absorbed. Note that shining the light on the scale DOES NOT increase the reading of the scale. Add a few drops of food coloring to a beaker FULL of water.