Heat Trap Open Response

Earth stays warm because certain gases in our atmosphere trap some of the Sun’s heat. This reading passage introduces students to the greenhouse effect, explaining why it is a natural process that makes life on Earth possible while also exploring how too many greenhouse gases can upset that balance. Readers learn about carbon dioxide, methane, and water vapor, and discover how everyday human activities influence Earth’s temperature over time. By connecting familiar examples with real-world science, the passage makes an important environmental topic easy to understand.

Students strengthen reading comprehension by identifying cause-and-effect relationships, distinguishing helpful and harmful effects, and explaining scientific processes in their own words. Vocabulary such as greenhouse effect, greenhouse gases, carbon dioxide, methane, atmosphere, and global warming is introduced naturally throughout the text. Written in a conversational style, this worksheet helps students understand that protecting our planet begins with understanding how it works.