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Describes different kinds of toys and the scientific principles that explain how they work.

Surveys some of the scientific principles used in investigating crime scenes and suspects.

Discusses two sides of issues related to global warming--whether the climate change will have good or bad effects, whether or not greenhouse gases should be reduced, and whether forests should be cleared for farms.

Presents both sides of three issues concerning nuclear energy: using nuclear energy for electricity, building nuclear weapons, and disposing of radioactive waste.

Discusses two sides of issues related to genetic engineering--whether DNA profiling violates a person's right to privacy, whether genetically modified foods are safe, and whether plants and animals should be cloned.

Discusses the scientific principles behind various objects and activities at a party including balloons, fireworks, magic, and laughter.