Figure 2.0 Bombardier beetle

Figure 2.1 The hierarchy of biological order from atom to organism

Figure 2.2 The emergent properties of a compound

Table 2.1 Naturally Occurring Elements in the Human Body

Figure 2.3 Nitrogen deficiency

Figure 2.4 Goiter

Figure 2.5 Two simplified models of a helium (He) atom

Figure 2.6 Using radioactive isotopes to study cell chemistry

Figure 2.7 A PET scan, a medical use for radioactive isotopes

Figure 2.8 The Tokaimura nuclear accident

Figure 2.9 Energy levels of an atom’s electrons

Figure 2.10 Electron configurations of the first 18 elements

Figure 2.11 Electron orbitals

Figure 2.12 Covalent bonding in four molecules

Figure 2.12x Methane

Figure 2.13 Polar covalent bonds in a water molecule

Figure 2.14 Electron transfer and ionic bonding

Figure 2.15 A sodium chloride crystal

Figure 2.16 A hydrogen bond

Figure 2.17 Molecular shapes due to hybrid orbitals

Figure 2.18 Molecular shape and brain chemistry

Figure 2.19 A molecular mimic

Unnumbered Figure (Page 38) Chemical reaction between hydrogen and oxygen

Figure 2.20 Photosynthesis: a solar-powered rearrangement of matter

Figure 3.0 Earth

Figure 3.1 Hydrogen bonds between water molecules

Figure 3.2 Water transport in plants

Figure 3.2x Trees

Figure 3.3 Walking on water

Figure 3.4 Evaporative cooling

Figure 3.x1 Water

Figure 3.5 The structure of ice (Layer 1)

Figure 3.5 The structure of ice (Layer 2)

Figure 3.5x1 Ice, water, and steam

Figure 3.6 Floating ice and the fitness of the environment

Figure 3.6x1 Floating ice and the fitness of the environment: ice fishing

Figure 3.6x2 Ice floats and frozen benzene sinks

Figure 3.7 A crystal of table salt dissolving in water

Figure 3.8 A water-soluble protein

Figure 3.x2 Moles

Unnumbered Figure (page 47) Chemical reaction: hydrogen bond shift

Figure 3.9 The pH of some aqueous solutions

Figure 3.10 The effects of acid precipitation on a forest

Figure 3.10x1 Pulp mill

Figure 3.10x2 Acid rain damage to statuary, 1908 & 1968