In this group of activities, students will investigate how nutrients and water move through ecosystems in cycles. Students will begin by investigating how carbon cycles through organisms as part of photosynthesis and cellular respiration and then through food chains. Students will discuss what happens when living things do not decompose under normal conditions and become fossilfuels. Students will then review the water cycle and discover that water connects everything inecosystems. Students will explore stories of the water cycle as told by molecules of water anddiscuss water’s importance to all living things.