Testing physical properties of substances
Students were taken into the lab to investigate and perform scientific tests to determine the physical properties of some common elements and compounds. The physical properties of elements and compounds play a very important role in determining the practical uses of these substances. We learned that there are two types of physical properties; qualitative and quantitative. Qualitative physical properties can be observed without detailed measurement and are usually very easy to observe. Color, texture and malleability are a few examples of qualitative physical properties. A quantitative physical property can be measured and assigned a particular value, eg, viscosity, solubility, etc. Certain properties, whether they are qualitative or quantitative are especially important when scientists observe and describe elements and compounds.
Water Sampling
Students brought in water samples from their local ponds, ravines and creeks to be tested using the AM12 Testab Water Investigation Kit. Utilizing the kit, students were able to determine the amounts of various elements and compounds in the water. The test also provided results that indicated whether or not the water was safe for the environment and the organisms that may live in or around that body of water.