Question

(b) Name two common properties of iron, water and air
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Answer 1

Two common properties of iron, water, and air are:

1. They are all matter: Iron, water, and air are all forms of matter. Matter is anything that has mass and occupies space.

2. They are all composed of atoms: Iron, water, and air are all made up of atoms. Iron is composed of iron atoms (Fe), water is composed of hydrogen and oxygen atoms (H2O), and air is composed of a mixture of different gases, primarily nitrogen (N2) and oxygen (O2), along with trace amounts of other gases.