This collection of 25 lessons puts biology concepts into real-world contexts. Each lesson addresses a question that students actually ask, and explores content from the National Science Education Standards.

Sample lessons:

• Why Do Worms Come Out After It Rains?
• How Do Seedless Watermelons Reproduce If They Don’t Have Seeds?
• What Causes an Ice-Cream Headache?

Materials include teaching notes with optional extensions, explanations, student activities, and answer keys.