Students are introduced to the physics concepts of air resistance and launch …
Students are introduced to the physics concepts of air resistance and launch angle as they apply to catapults. This includes the basic concepts of position, velocity and acceleration and their relationships to one another. They use algebra to solve for one variable given two variables.
In this lesson, students learn that light travels in a straight line …
In this lesson, students learn that light travels in a straight line from a light source and that ray diagrams help us understand how an image will be created by a lens. In the accompanying activity, students explore the concepts behind the workings of a pinhole camera.
To further their understanding of sound energy, students identify the different pitches …
To further their understanding of sound energy, students identify the different pitches and frequencies created by a vibrating ruler and a straw kazoo. They create high- and low-pitch sound waves.
This is an activity about the way distance, albedo, and atmosphere affect …
This is an activity about the way distance, albedo, and atmosphere affect the temperature of a planet. Learners will create a planet using a computer game and change features of the planet to increase or decrease the planet's temperature. They will then discuss their results in terms of greenhouse strength and the presence of liquid water. This lesson is part of Project Spectra, a science and engineering education program focusing on how light is used to explore the Solar System.
This is an activity about the atmospheric conditions (greenhouse strength, atmospheric thickness) …
This is an activity about the atmospheric conditions (greenhouse strength, atmospheric thickness) Mars needs to maintain surface water. Learners will use a computer interactive to learn about Mars past and present before exploring the pressure and greenhouse strength needed for Mars to have a watery surface as it had in the past. This lesson is part of Project Spectra, a science and engineering education program focusing on how light is used to explore the Solar System.
This is an activity about how much atmospheric pressure is needed on …
This is an activity about how much atmospheric pressure is needed on Mars to maintain surface water and why it does not have surface water today. Learners will use a computer interactive to learn about Mars past and present before exploring the pressure and greenhouse strength needed for Mars to have a watery surface as it had in the past. This lesson is part of Project Spectra, a science and engineering education program focusing on how light is used to explore the Solar System.
The PlanetQuest Observing Cards are designed to give telescope operators and other …
The PlanetQuest Observing Cards are designed to give telescope operators and other interpreters a new way of explaining the night sky. Relating common observing objects to our search for exoplanets makes these spectacular sights more understandable. These cards are a great resource for use at observing night events, providing new stories to tell about commonly viewed celestial objects.
In this lesson, students learn about echolocation: what it is and how …
In this lesson, students learn about echolocation: what it is and how engineers use it to "see" things in the dark, or deep underwater. Also, they learn how animals use echolocation to catch their dinner and travel the ocean waters and skies without running into things.
Une série de simulations provenant de l’Université de Colorado à Boulder pour …
Une série de simulations provenant de l’Université de Colorado à Boulder pour les 9e – 12e au sujet des sciences.
«Les étudiants prédiront la polarité des liaisons en utilisant les valeurs de l'électronégativité ; indiqueront la polarité avec une flèche polaire ou des charges partielles ; classeront les liaisons par ordre de polarité ; et prédiront la polarité moléculaire en utilisant la polarité des liaisons et la forme moléculaire.»
We’re continuing our look at engineering materials with third main type of …
We’re continuing our look at engineering materials with third main type of material that you’ll encounter as an engineer: polymers. They’re made of long, repeating chains of smaller molecules known as monomers and today we’ll explore their strange history of polymers and the things that contributed to how we use them today.
Students design and build paper rockets around film canisters, which serve as …
Students design and build paper rockets around film canisters, which serve as engines. An antacid tablet and water are put into each canister, reacting to form carbon dioxide gas, and acting as the pop rocket's propellant. With the lid snapped on, the continuous creation of gas causes pressure to build up until the lid pops off, sending the rocket into the air. The pop rockets demonstrate Newton's third law of motion: for every action, there is an equal and opposite reaction.
Working in teams, students learn the basics of fluid power design using …
Working in teams, students learn the basics of fluid power design using the PFPD as their investigative platform. They investigate the similarities and differences between using pneumatic and hydraulic power in the PFPD. With the main components of the PFPD already assembled, student groups determine the correct way to connect the valves to the actuators using colored, plastic tubing. Once connected, they compete in timed challenges to test their abilities to separate material out of containers using the PFPDs. NOTE: No special pre-requisite knowledge is required for students to be successful in this activity.
Students investigate the accuracy of sundials and the discrepancy that lies between …
Students investigate the accuracy of sundials and the discrepancy that lies between "real time" and "clock time." They track the position of the sun during the course of a relatively short period of time as they make a shadow plot, a horizontal sundial, and a diptych sundial. (The activity may be abridged to include only one or two of the different sundials, instead of all three.)
This is a hands-on lab activity about seawater density, specifically the relationship …
This is a hands-on lab activity about seawater density, specifically the relationship between density of fluid, weight of an object, and buoyancy. Learners will develop hypotheses and observe a demonstration of density to understand its role in buoyancy. They will also examine the effect of salinity on density. Background information, common preconceptions, a glossary and more is included. This activity is part of the Aquarius Hands-on Laboratory Activities.
« Ton ketchup ne veut pas sortir de la bouteille? Laisse-nous te …
« Ton ketchup ne veut pas sortir de la bouteille? Laisse-nous te révéler les secrets de la viscosité de ce fluide non newtonien! »
*Texte, images, animation, vidéo:
-Comment les fluides s’écoulent-ils? -Pourquoi le ketchup est-il si particulier? -Quelle est la meilleure façon de faire couler du ketchup? -Amorces de discussion
*Suggestions et liens annexes: articles, activités de compréhension « relation question-réponse » et « toile de définition du concept » (fiches reproductibles adaptées et téléchargeables), activité tableau en deux volets, projet/enquête Tomatosphère (germination de graines), vidéos divertissantes et informatives
« T’es-tu déjà demandé pourquoi les navires se maintiennent à flot? La …
« T’es-tu déjà demandé pourquoi les navires se maintiennent à flot? La réponse est dans la flottabilité! »
*Texte, images, vidéo, illustrations:
-Qu’est-ce que la flottabilité? -Quel est le lien entre la flottabilité et la densité? -Comment la flottabilité et la densité s’appliquent-elles aux navires? -Amorces de discussion
Suggestions/liens annexes: activité « toile de définition du concept » (fiche reproductible adaptée), plusieurs expériences qui illustrent la flottabilité
This is an activity about solar energy. Learners will first use computers …
This is an activity about solar energy. Learners will first use computers to research and learn how solar panels convert sunlight into electricity. Next, they will calculate the surface area of solar panels board a satellite and their total power generated in various positions of the satellite, given the dimension of the panels. After, learners will organize and write a report summarizing the information about the MMS mission satellites. This activity requires student access to internet accessible computers. This is lesson four as part of the MMS Mission Educator's Instructional Guide.
Students learn about the mechanical advantage offered by pulleys in an interactive …
Students learn about the mechanical advantage offered by pulleys in an interactive and game-like manner. By virtue of the activity's mechatronic presentation, they learn to study a mechanical system not as a static image, but rather as a dynamic system that is under their control. Using a LEGO® MINDSTORMS® robotics platform and common hardware items, students build a mechanized elevator system. The ability to control different parameters (such as motor power, testing load and pulley arrangement) enables the teacher, as well as the students, to emphasize and reinforce particular aspects/effects of mechanical advantage.
Students use balloons (a polymer) to explore preconditioning a viscoelastic material behavior …
Students use balloons (a polymer) to explore preconditioning a viscoelastic material behavior that is important to understand when designing biomedical devices. They improve their understanding of preconditioning by measuring the force needed to stretch a balloon to the same displacement multiple times. Students gain experience in data collection and graph interpretation.
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