This NetLogo model of leaf photosynthesis shows the macroscopic outcome of the reaction.

This Java-based NetLogo model allows students to investigate the chemical and energy inputs and outputs of photosynthesis through an interactive simulation. The simulation is a visual, conceptual model of photosynthesis and does not generate quantitative data. The central concept in the model is the role of chlorophyll in capturing light energy, and this concept is presented without delving into the biochemical details of the photosynthetic reactions. This allows students to focus on the core idea that photosynthesis transforms light energy into chemical energy. Along with exploring the basic process of photosynthesis, students can investigate the effects of light intensity, the day-night cycle (assuming the most common C3 photosynthetic pathway), CO2 concentration, and water availability on the rate of sugar production during photosynthesis. The model highlights the cycling within the chloroplasts between excited and unexcited states as energy is captured and released by chlorophyll. The lesson is written as an introductory learning experience, beginning with the question: What is needed for photosynthesis in a leaf, and what is produced? This resource is best suited as one in a series of learning experiences that either reinforce or extend the concepts addressed here. The model is embedded within an electronic form that provides instructions and guiding questions. Teachers and students should note that the electronic form does not save user data. An important limitation is that the model relies heavily on students’ visual perception, and this may pose a barrier for some students.

This activity is a classroom introduction to bird migration. Students will acquire new vocabulary, sharpen their map skills, and discover the scientific reasons some birds migrate.

This article highlights lessons that help K-grade 5 students understand that animals and plants can only survive in certain environments.The lessons support the theme of an issue of the free online magazine Beyond Weather and the Water Cycle. The theme is "We Depend on Earth's Climate."

This activity is an introduction to the concept of levers, the classes, and their parts using the musculoskeletal system.

Three billion years ago single-celled underwater bacteria used sunlight to convert carbon dioxide and water into tiny oxygen bubbles. Soon plants were turning an atmosphere full of volcanic carbon dioxide into oxygen. As we learn in this video segment from Interactive NOVA: "Earth," photosynthesis created a good home for animals and humans, though not for some primitive organisms. They had to retreat to where oxygen couldn't reach them. Join researchers as they search for these organisms, now considered tiny time capsules from a time before there was oxygen on Earth.

This interactive introduces how HIV enters the host cell and uses its resources to
reproduce.

This activity is based on inquiry, guided discovery, observation and discussion to help students learn the objectives in learning more about a fish, labeling its body part and learning about its life cycle.

In this lesson, students will extend their knowledge of matter and energy cycles in an organism to engineering life cycle assessment of a product. Students will learn about product life cycle assessment and the flow of energy through the cycle, comparing it to the flow of nutrients and energy in the life cycle of an organism.

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.

Go behind-the-scenes at the Cleveland Museum of Natural History to learn about and explore life support systems found at CMNH

In this activity, students will explore the diverse signs of life that can be hidden in water. After reading articles and creating a news report to help them understand the significance of water on Mars, they will observe pond water under a microscope as they search for single-celled and multi-celled organisms. They will then select an organism to research more in-depth as they further consider the role that each organism plays in its ecosystem. The session will wrap up with a class discussion around whether scientists should further study the water on Mars for signs of life.

Estimated time required: 2-3 class periods.

Technology required for this lesson: .

En este video, Monique demuestra cómo realizar una reacción de ligación en el laboratorio.

Esta simulación proporciona la oportunidad de practicar la realización de una reacción de ligación en un laboratorio virtual. Este proceso utiliza la enzima ADN ligasa para unir dos fragmentos de ADN utilizando extremos romos o cohesivos complementarios generados a partir de una digestión con enzimas de restricción.

This simulation provides the opportunity to practice performing a ligation
reaction in a virtual lab setting. This process uses the enzyme DNA ligase
to attach two DNA fragments using complementary blunt or sticky ends
generated from a restriction enzyme digest.

Cette simulation permet de s’entraîner à réaliser une réaction de ligature dans un environnement de laboratoire virtuel. Ce processus utilise l’enzyme ADN ligase pour lier deux fragments d’ADN à l’aide d’extrémités franches ou d’extrémités collantes complémentaires générées à partir d’une digestion par enzymes de restriction.

Esta simulação proporciona a oportunidade de praticar uma reação de ligação em um cenário de laboratório virtual. Este processo usa a enzima DNA ligase para ligar dois fragmentos de DNA usando extremidades cegas ou coesivas complementares geradas a partir da digestão de uma enzima de restrição.

Drawings and visualizations are used to help participants conceptualize the location and steps involved in the light reactions of photosynthesis. The drawsing include light reactions of photosynthesis including location and steps for non-cyclic and cyclic photophosphorylation.

Diese Simulation bietet die Möglichkeit, die Durchführung einer Ligationsreaktion in einer virtuellen Laborumgebung zu üben. Bei diesem Prozess wird das Enzym DNA-Ligase verwendet, um zwei DNA-Fragmente mit komplementären stumpfen oder kohäsiven Enden, die aus einem Restriktionsenzymverdau stammen, zu verbinden.

Students will build models of animal, plant, and prokaryotic cells. Using a toolbox of organelles, students can build models from scratch, and receive adaptive feedback.

Estimated time required: 1-2 class periods.

Technology required for this lesson: Laptop/Desktop, VR Headset.