7.5.3: Construct explanations that describe the patterns of body structure…

Natural Selection: How Living Things Change Over Time Grades 6–8

A peppered moth hunting game over four generations, the Grants' real Galápagos finch data from the 1977 drought, whale fossils in rock-layer order with a forelimb bone comparison, and five case stations on selective breeding and antibiotic resistance. Every lesson runs on printed sheets alone: no materials to buy.

• How do fossils show life has changed? 50–60 min

  Teams build a rock column from printed fossil cards of early whales, from a four-legged land animal to a sea creature with tiny hind legs, and track the changes. Then they compare the bones in a human arm, a cat's leg, a whale's flipper, a bat's wing and a bird's wing, and explain what the shared pattern says about relationships.

Printable practice for 7.5.3

These pages practise a closely related idea; the match to 7.5.3 is partial.

• Natural Selection: How Living Things Change Over Time workbook included with the unit

  1 word wall, 1 English-support page, 1 practice page, 1 reading, 1 unit review, 1 unit test, with answer keys.

Need just this outcome? Build a custom pack from these pages, with its answer key, in about a minute. Custom packs come with All-access and school licences.