What is the 10 percent rule in an energy pyramid?

Only about 10 percent of the energy at one feeding level passes to the next level. The other 90 percent is used for life processes or lost as heat. The Energy Pyramid has students divide by 10 going up and multiply by 10 going back down.

What are the three types of symbiosis?

In mutualism both species benefit, in commensalism one benefits and the other is not affected, and in parasitism one benefits and the host is harmed. The Symbiosis sheet has students sort nine pairs, such as remora and shark, into those three groups.

What is carrying capacity?

Carrying capacity is the largest population an environment can support year after year. Limiting Factors and Carrying Capacity uses an imaginary island deer herd with sample numbers, and students read the graph to find where the herd levels off.

6th Grade Ecosystems Worksheets

Ages 11-12 · 4 sub-topics · Free previews · Print-ready PDFs

An ecosystem is a community of living things and the nonliving parts of the area they share, linked by feeding relationships and the flow of energy and matter. There are 10 worksheets for 6th grade here, each with an answer key, covering food webs, the carbon cycle, biomes, symbiosis and population change. Reading a Food Web, The Energy Pyramid and Zebra Mussels, an Invasive Species ask students to trace energy, calculate with the 10 percent rule and follow a chain of effects, and the sheets carry MS-LS2-1, MS-LS2-2, MS-LS2-3 and MS-LS2-4 where the page fits.

Written by Adi Ackerman, Head Teacher

Grade6th Grade

TopicEcosystems

Frequently Asked Questions

The 10 sheets cover food webs, producers and decomposers, energy pyramids, the carbon cycle, world biomes, biodiversity, symbiosis, predator and prey populations, carrying capacity and invasive species. Each one is 2 pages with an answer key.

More science worksheets

Explore all of our 6th grade science worksheets, covering matter, forces and motion, energy, waves and light, and more.

Matter Forces and Motion Energy Waves and Light Living Things Earth Science Earth Systems Earth and Space Scientific Method

What is ClassWeekly?

ClassWeekly offers free worksheets and printable learning resources for kids, from preschool up. All worksheets are aligned to Common Core, NGSS, and C3 Framework standards and designed by educators. Become a member to access the full library and download unlimited PDFs.