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Video computer games, virtual labs and activities for learning and reviewing biology content. Great for students and teachers.

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Touches on one of the skills: Investigate the importance of warming up and cooling down after exercise.

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Anaerobic Respiration

(BIOB34 - Group Assignment) This video is used to highlight the purpose and mechanism of Anaerobic

Launched as a beta version in 2009, SafeShare has gained popularity as the safest way to watch and share YouTube and Vimeo videos, and is widely used all around the globe by educators so their students can watch educational material without the fear of inappropriate videos showing up.

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SafeShare removes unwanted distractions from YouTube and Vimeo videos and reduces ads, so you can focus on the content. Perfect for schools and businesses!

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Marietta Middle School 7th Grade Science Website

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Cellular Respiration vs. Photosynthesis Notes (Google Slides)

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Visual Flash cards on Photosynthesis and Respiration

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Pages 1-6 only

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Describes the process of Photosynthesis and why its important, compares respiration and photosynthesis, discusses factors that affect Photosynthesis e.g. Chlorophyll. This video will initiate independent and critical thinking in the students.

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Outlines the Respiratory System very well highlighting it as both a chemical and biological process. Links the system to other systems helping the students connected new material to previous material which in turn deepens the learners understanding of topics.

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Padlet - Reflection Rachel Tarrant 21319618

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Clearly outlines the factors that affect respiration and photosynthesis including the learning intentions at the beginning of the lesson and the success criteria to conclude the lesson.
This video ensures that the lesson provides a variety of learning options available to the students specifically targeting the visual learners.

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Factors Affecting the Rate of Photosynthesis and Respiration (Video 7 in 2.4 Series)

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This paper from the University of California Museum of Paleontology discusses the importance of photosynthesis in the industry of food and organic matter in ecosystems. I have used this in my planning when linking my planning to learning outcome BW7 to NoS10 encouraging students to appreciate the role of science in society.

It touches on how essential the energy that is produced through photosynthesis is in contributing to the biosphere's energy flow. This was also incorporated in my planning when linking my learning outcome BW7 to NoS10 but this time it was in relation to informing the students to appreciate the role of both respiration and photosynthesis and its global importance.

It discusses how the byproducts of photosynthesis are required for respiration to take place. I have used this in my planning when relating my learning outcome BW7 to other science strands in this case it was the ES5 relating how respiration impacts the cycle of matter.

It gives an insight into the excess addition of carbon dioxide from human activities for example burning fossil fuels and how it negatively impacts photosynthetic organisms. I have used this insight in my planning when discussing my learning outcome BW7 which involves investigating the factors that affect specifically photosynthesis and linking this view to my other science strand ES5. This insight is also incorporated in the values section under unpacking the learning.

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Photosynthesis is the processes of using sunlight to convert chemical compounds (specifically carbon dioxide and water) into food. Photosynthesizing organisms (plants, algae, and bacteria) provide most of the chemical energy that flows through the biosphere. They also produced most of the biomass that led to the fossil fuels that power much of our modern world. Photosynthesis takes place on land, in the ocean, and in freshwater environments. The first photosynthesizing single-celled bacteria evolved over 3.5 billion years ago. The subsequent rise in atmospheric oxygen (a byproduct of photosynthesis) about a billion years later played a major role in shaping the evolution of life on Earth over the last 2.5 billion years. Today the vast majority of land, freshwater, and oceanic organisms require oxygen for respiration, the biochemical process that generates energy from food.

On this page:

For the classroom:

Global Change Infographic

Photosynthesus is an essential part of How the Earth System Works. Click the image on the left to open the Understanding Global Change Infographic. Locate the photosynthesis icon and identify other Earth system processes and phenomena that cause changes to, or are affected by, photosynthesis.

What is photosynthesis?

Photosynthesis is the chemical process by which plants, algae, and some bacteria use the energy from sunlight to transform carbon dioxide (a greenhouse gas) from the atmosphere, and water, into organic compounds such as sugars. These sugars are then used to make complex carbohydrates, lipids, and proteins, as well as the wood, leaves, and roots of plants. The amount of organic matter made by photosynthesizing organisms in an ecosystem is defined as the productivity of that ecosystem. Energy flows through the biosphere as organisms (including some animals) eat photosynthesizing organisms (called herbivores), and as organisms then eat those herbivores (carnivores), etc., to get their energy for growth, reproduction, and other functions. This energy is acquired through the process of cellular respiration, which usually requires oxygen. Oxygen is a byproduct of photosynthesis. About 70% of the oxygen in the atmosphere that we breathe comes from algae in the ocean. Atmospheric oxygen from photosynthesis also forms the ozone layer, which protects organisms from harmful high-energy ultraviolet (UV) radiation from the Sun. Because photosynthesis also requires the availability of water affects the productivity and biomass of the ecosystem, which in turn affects how much and how rapidly water cycles through the ecosystem.

Fossil fuels are derived from the burial of photosynthetic organisms, including plants on land (which primarily form coal) and plankton in the oceans (which primarily form oil and natural gas). While buried, the carbon in the organic material is removed from the carbon cycle for thousands of years to hundreds of millions of years. The burning of fossil fuels has dramatically increased the exchange of carbon from the ground back into the atmosphere and oceans. This return of carbon back into atmosphere as carbon dioxide is occurring at a rate that is hundreds to thousands of times faster than it took to bury it, and much faster than it can be removed by photosynthesis or weathering. Thus, the carbon dioxide released from the burning of fossil fuels is accumulating in the atmosphere, increasing average temperatures and causing ocean acidification.

The rate of photosynthesis in ecosystems is affected by various environmental conditions, including:

Climatic conditions, such as the amount of sunlight available at different latitudes, temperature, and precipitation For example, ecosystems at low latitudes, such as tropical rainforests, have higher productivity and biomass than ecosystems near the poles because of they receive more sunlight and rainfall than regions at higher latitudes.

Numerous other abiotic environmental factors, including soil quality (often related to nutrient levels), wildfires, water acidity, and oxygen levels.

Evolutionary processes that can change the growth and reproduction rates of photosynthesizing organisms over time, as well as the growth and reproduction of rates of the organisms that eat them.

Humans have altered the rate of photosynthesis, and in turn productivity, in ecosystems through a variety of activities, including:

The use of fertilizers for agricultural activities that increase the amount of nutrients, especially nitrogen and phosphorous, in soil or water. These nutrients increase plant and algae growth, including growth of species that are toxic to other organisms. Increased nutrients is not always a good thing. For example, in aquatic environments, nutrient-rich runoff can cause large amounts of algae to grow - when these algae die, they are consumed by bacteria which can reduce oxygen levels in the water, killing fish and other species. This process is known as eutrophication.

Human freshwater use, which can limit the amount of water available for plants and trees in an ecosystem.

The release of pollutants and waste, which can reduce growth and reproduction or kill plants.

Activities that release carbon dioxide and other greenhouse gases that cause global warming, such as the burning of fossil fuels, agricultural activities, and deforestation. Increasing carbon dioxide levels may increase photosynthesis rates in some plants, but this can also make plants less nutritious. Increasing average global land and ocean temperatures and changes in precipitation patterns also affect plant and algae growth, and can make certain species more susceptible to disease.

Activities such as the burning of fossil fuels, agricultural activities, and deforestation that release carbon dioxide into the atmosphere, which is absorbed by the ocean causing acidification. The decreasing pH of ocean waters (along with ocean warming) causes physiological stress for many plant and algae species, which can decrease growth, reproduction, species population sizes, and biomass.

Introducing invasive species that compete with native plant or algae species for nutrients, water, light, or other resources, reducing native species populations.

Earth system model about photosynthesis

The Earth system model below includes some of the processes and phenomena related to photosynthesis. These processes operate at various rates and on different spatial and temporal scales. For example, carbon dioxide is transferred among plants and animals over relatively short time periods (hours-weeks), but the deforestation alters ecosystems over decades to centuries, or longer. Can you think of additional cause and effect relationships between photosynthesis and other processes in the Earth system?

Explore the Earth System

Click the bolded terms (e.g. respiration, productivity and biomass, and burning of fossil fuels) on this page to learn more about these process and phenomena. Alternatively, explore the Understanding Global Change Infographic and find new topics that are of interest and/or locally relevant to you.

Links to Learn More

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Photosynthesis - Understanding Global Change

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Photosynthesis is the processes of using sunlight to convert chemical compounds (specifically carbon dioxide and water ) into food . Photosynthesizing organisms (plants, algae, and bacteria) provide most of the chemical energy that flows through the biosphere. They also produced most of the biomass that led to the fossil fuels that power much of our modern world.

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Most significant key skills/principles
1. Staying Well- Being healthy and physically active is highlighted in the lesson for its important contribution in respiration. Regular exercise makes the body more aerobically fit allowing better flow of oxygen to your muscles and brain.
2. Working with others- In carrying out the experiment on the factors that influence photosynthesis the students will effectively develop their communication skills from working with each other. Through making decisions the students will learn how to compromise and learn from each other.
3. Managing my information and thinking- from the new information students have obtained they will learn how to present their findings in a way that helps them connect the new knowledge to their prior knowledge.

4. Being Literate- the students will have the opportunity to develop their literacy skills when learning and presenting the different processes that take place in both respiration and photosynthesis.

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2. Collaborative Planning Document Unpacking

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2. Collaborative Planning Document Unpacking

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Nature of Science:

NoS2. Students should be able to recognise questions that are appropriate for scientific investigation, pose testable hypotheses, and evaluate and compare strategies for investigating hypotheses.

This Learning Outcome links to BW7 as students should be able to form appropriate hypotheses when analysing and understanding both processes. They should be able to explore the factors that affect both processes.

NoS7 Students should be able to organise and communicate their research and investigative findings in a variety of ways fit for purpose and audience, using relevant scientific terminology and representations.

This Learning Outcome links to BW7 as students will investigate factors that affect both processes. This learning outcome addresses the key skills (communicate their research and investigative findings) the students will require when presenting the results of their investigation.

NoS10 Students should be able to appreciate the role of science in society; and its personal, social and global importance; and how society influences scientific research.  In BW7 students will discusses the importance of photosynthesis in the industry of food and organic matter in ecosystems when investigating the factors that affect both respiration and photosynthesis.

Other Science Strands:

ES5. Students should be able to describe the cycling of matter, including that of carbon and water, associating it with biological and atmospheric phenomena.

Students can link the cycling of matter to both the chemical and biological processes when photosynthesis takes place the carbon dioxide from the atmosphere and water is converted into organic compounds (glucose). Respiration impacts the cycle of matter as carbon dioxide and water are products of respiration which get released into the atmosphere so that the carbon dioxide can be used in the carbon cycle.

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BW7: Students should be able to describe respiration and photosynthesis as both chemical and biological processes; investigate factors that affect respiration and photosynthesis.