Students are introduced to the concept of engineering biological organisms and studying their growth to be able to identify periods of fast and slow growth. They learn that bacteria are found everywhere, including on the surfaces of our hands. Student groups study three different conditions under which bacteria are found and compare the growth of the individual bacteria from each source. In addition to monitoring the quantity of bacteria from differ conditions, they record the growth of bacteria over time, which is an excellent tool to study binary fission and the reproduction of unicellular organisms.

CK-12’s Life Science delivers a full course of study in the life sciences for the middle school student, relating an understanding of the history, disciplines, tools, and modern techniques of science to the exploration of cell biology, genetics, evolution, prokaryotes, protists, fungi, plants, the animal kingdom, the human body, and ecology. This digital textbook was reviewed for its alignment with California content standards.

This simulation shows the relationship between the inputs and outputs in the chloroplasts of plants to help explain how they convert water and carbon dioxide to glucose and water with the help of energy absorbed from light. It is used in Lesson 5 of Unit 7.4 in the OpenSciEd curriculum.

This series of activities explores animal sounds and how to research them.  A scientist working in the Sound Ecology lab at Western Michigan University is featured.  The introduction and first two activities are adaptable for all grade bands; the wrap-up section has 4 different options, depending on grade band.

This lesson is about the flow of energy in ecosystems. The setting is Plimoth Plantation, a living history museum in Plymouth, Massachusetts, USA, where students will learn about the first Thanksgiving meal in America, celebrated in 1621 by early American settlers and Wampanoag Indians. By examining this meal and comparing it to a modern day Thanksgiving celebration, students will be able to explore the way in which food energy moves and is transformed in an ecosystem. The learning goals focus on the movement of energy from one feeding level to the next within a food web, the way in which energy changes form, and the inefficiency of energy transfer, which in turn affects the availability of food energy for organisms at the highest feeding level. The lesson is directed at high school level biology students. Students should be familiar already with food webs, food chains, and trophic (feeding) levels. They should also be familiar with the general equations for photosynthesis (CO2 + H2O => C6H12O6) and cell respiration (C6H12O6 => CO2 + H2O), and understand the basic purpose of these processes in nature. This lesson can be completed during one long classroom period, or can be divided over two or more class meetings. The duration of the lesson will depend on prior knowledge of the students and on the amount of time allotted for student discussion. There are no supplies required for this lesson other than the downloadable worksheets (accessed on this BLOSSOMS site), paper and some glue or tape.

An active, high-energy game, where students role-play parts of the ecosystem as producers, herbivores, carnivores, and decomposers. This activity can also be used to simulate the bioaccumulation of toxins.

Students first consider what supports all life on Earth
and are then introduced to the levels of environmental
organization (biosphere, biome, ecosystem, community,
population, and organism).

Students take a short field trip into the schoolyard for a scavenger hunt to find examples of nonliving (abiotic) and living (biotic) ecosystem components, including organisms, habitat, population, community, ecosystem, sunlight, water, temperature, nutrients, and wind. This activity can be used as an informal assessment for Lesson 1.

Students will observe and describe the communities of plants and animals they discover within mini-ecosystems found in their schoolyards. Students will use tools to survey abiotic components of the mini-ecosystems – temperature, soil, moisture, etc. In order to observe changes over time, students should repeat the same activity (in same location) several times over the course of the year.Students answer these essential questions: What type of ecosystem is our schoolyard a part of and what miniecosystems might be found within it? and How do ecosystems change over time?

Students read a series of riddles depicting the habitat requirements for specific Michigan wildlife species; they then identify the animal as well as which type of ecosystem (forest, wetland, coastal dune, or river) may offer appropriate habitat for that species.

Students work in small groups to research, identify, and label food webs on the Michigan DNR Non-Game Wildlife posters. Students then predict the possible consequences of removing one component of the food web.

In this activity,students participate in a charades-like activity to learn about some of the secret services provided by ecosystems and the species within them. Later, students apply understanding of the terms ecological, economic, and social to categorize ecosystem benefits. Finally, students review the lesson concepts in a bingo game.

Students use a set of Invasive Species Picture Cards to learn about 30 invasive species affecting both aquatic and terrestrial ecosystems in the Great Lakes region. Students
use the cards to classify the organisms according to their habitat type, method of introduction, origin, and date of arrival. Students then identify strategies for preventing the
introduction of new species or the spread of existing ones.

Objective
Students will be able to read and understand food chains and food webs.

Big Idea
Eating out in the natural world.

Objective
Students will be able to compare and contrast food chains, food webs and food pyramids.

Big Idea
It's lonely at the top of a food pyramid

Objective
Students will be able to read and interpret food chains, food webs, and food pyramids.

Big Idea
Small changes can mean big problems for ecosystems.

The Ecology Student Edition book is one of ten volumes making up the Human Biology curriculum, an interdisciplinary and inquiry-based approach to the study of life science.

Meg set out to climb up and investigate the rain forest tree canopies — and to be the first scientist to do so. But she encountered challenge after challenge. Male teachers would not let her into their classrooms, the high canopy was difficult to get to, and worst of all, people were logging and clearing the forests. Meg never gave up or gave in. She studied, invented, and persevered, not only creating a future for herself as a scientist, but making sure that the rainforests had a future as well. The resource includes a lesson plan/book card, a design challenge, and copy of a design thinking journal that provide guidance on using the book to inspire students' curiosity for design thinking. Maker Challenge: Your community has many different areas to explore - it might be a park, a grocery store, a forest, or an alley. For some people, it might be difficult to explore these areas because they may have differing abilities. Select one area in your community, and come up with a plan to build a way for it to be more accessible to everyone.

A document is included in the resources folder that lists the complete standards-alignment for this book activity.

CK-12 Life Science Honors For Middle School covers seven units: Understanding Living Things; Cells: The Building Blocks of Life; Genetics and Evolution; Prokaryotes, Protists, Fungi, and Plants; The Animal Kingdom; The Human Body; and Ecology.

In this group of activities students will investigate their schoolyard or other nearby space in orderto identify what is around them and arrive at the definition of an ecosystem. Students will take a walk or go to a specific location to observe the types of constructed and natural features that are there. Students will record their observations and then begin to categorize their findings into living and non- living things. Once students have identified the living things, they will discuss what living things need to survive. Students will learn new terms, biotic and abiotic, and review what a habitat is as they discuss the components of an ecosystem. Students will also be introduced to the term biodiversity.