Mendel's Pea Plant Experiment

Mendel's Pea Plant Experiment — Main Idea and Supporting Details

This one-page reading activity gives students an original, non-fiction passage about Gregor Mendel and the pea plant experiment that revealed how traits pass from parents to offspring. Students read the passage, then complete a four-part graphic organizer: the topic, the main idea, and two supporting details drawn from the text.

The passage is written to reward careful reading rather than recall. It opens with the belief Mendel was testing — that offspring are a mixture of their parents — then reports his real counts of 787 tall and 277 short plants, and closes by explaining why a three-to-one ratio follows from two factors rather than a blend. Students who read only for names and dates will not find the main idea; students who follow the argument will.

Because the passage builds toward a general claim about heredity instead of stopping at a story about one monk and his garden, the organizer works as intended: the topic is a concept, and the supporting details are countable facts from the text.

What is included

• One-page reading passage with graphic organizer

• Complete answer key 

   

Ideal for close reading in science, reading in the content areas, sub plans, early finishers, or interactive notebooks.