During this Unit, students will conduct several investigations focused on the concepts of weight, balance, and volume. Through experimentation, they will explore the relationship between weight and balance and be introduced to the concept that solids and liquids possess volume. In order to conduct their investigations, they will be introduced to a beam balance, which consists of a beam and fulcrum, and a pan balance. Both of these are science tools that can be used to compare the weight of two or more items. In order to measure volume, students will be introduced to the beaker.
Through this Unit, students also develop their understanding of the concepts of states of matter. Students establish that matter in both solid and liquid forms possess the physical properties of weight and volume. The systematic manipulation of first weight then volume, and the demonstration of principles using first solids then liquids, helps students learn to logically manipulate one variable at a time when investigating the properties of objects. It also facilitates attention to one scientific principle at a time. By conducting these investigations students will develop an appreciation for weight, volume and measurement that will serve to deepen their understanding of the world around them.
Conceptual Themes addressed in this Unit:
- Properties of Matter
- Force and Motion