Science grade 3 chapter chapter 5

An __________ is all the living and nonliving things that interact in an environment

_________ and communities are groups within ecosystems

The _______ energy flows to living things through a ___________

A ___________ is a system of overlapping food chains in an ecosystem

___________ can cause changes in their environment

Changes can _____ some living things and _______ others

Natural events such as _________ can change ecosystems

A ___________ is the remains or mark of a plant or animal that lived long ago

Fossils show how ________ and ________ have changed over time

Fossils help ________ learn about plants and animals that are _________