Me with questions #4-7 on this worksheet

4.Some of the more important physical and chemical properties from an engineering material standpoint will be discussed in the following sections.Phase Transformation Temperatures.Density.Specific Gravity.Thermal Conductivity.Linear Coefficient of Thermal Expansion.Electrical Conductivity and Resistivity.
5.The general properties of matter such as color, density, hardness, are examples of physical properties. Properties that describe how a substance changes into a completely different substance are called chemical properties. Flammability and corrosion/oxidation resistance are examples of chemical properties.
6.Destiny, sometimes referred to as fate, is a predetermined course of events. It may be conceived as a predetermined future, whether in general or of an individual.
7.Iron and steel rust when they come into contact with water and oxygen. They rust faster in salty water or acid rain. Aluminium, on the other hand, does not corrode easily, because its surface is protected by a layer of aluminium oxide.

The answer is orbit around nucleus