Learn what causes storms, how geography affects weather patterns, and how climate change affects the whole planet.

Includes index.

What is weather? -- Q 2: what do scientists who study weather measure? -- Q 3: what causes the seasons to change? -- Q 4: why is there more daylight in the summer than in the winter? -- Q 5: what is the sun's role in our weather? -- Q 6: why does warm air rise? -- Q 7: what causes wind? -- Q 8: how do clouds form? -- Q 9: what is precipitation? -- Q 10: what causes snow, sleet, or hail to form? -- Q 11: what causes thunderstorms/thunder and lightning? -- Q 12: what causes tornadoes? -- Q 13: what causes tropical storms and hurricanes? -- Q 14: how do land forms affect weather? -- Q 15: what is climate and how does it differ from weather? -- Q 16: what is climate change? -- Q 17: what causes changes in the climate? -- Q 18: what is the greenhouse effect? -- Q 19: what causes temporary climate changes? -- Q 20: what are people doing to reverse human-made climate change?.