PHYSICAL SCIENCE Erlen needs your help to get some trucks out of …
PHYSICAL SCIENCE Erlen needs your help to get some trucks out of the mine! Using your knowledge of hydraulic systems, sort the pistons to solve Erlen’s challenge all while developing your knowledge about mechanical advantage.
ABOUT THE SCIENCE Hydraulic systems are used everywhere: mechanic's shops, elevators, and even in brakes in a car. Where else do hydraulic systems appear? Large machinery, such as that used in construction, uses a mechanical system called hydraulics to be able to lift and carry large and heavy things. The hydraulic systems create force using cylindrical parts, called pistons that are connected by a hose or pipe and filled with a fluid. When the force used to move an object over a distance (effort force) is applied to the input piston, the force is transmitted to the output piston as the oil is pushing through the closed system of pipes. When the size of a cylinder is changed, you can add force to the system in order to move a heavy load. In a closed system, the pressure in the hydraulic lift remains constant so the surface area of the pistons determines how the force of that pressure is transferred between them. This works well if the pump is designed to rest when oil is not required; like in a tractor.
So we’ve talked about computer memory a couple times in this series, …
So we’ve talked about computer memory a couple times in this series, but what we haven’t talked about is storage. Data written to storage, like your hard drive, is a little different, because it will still be there even if the power goes out - this is known as non-volatile memory. Today we’re going to trace the history of these storage technologies from punch cards, delay line memory, core memory, magnetic tape, and magnetic drums, to floppy disks, hard disk drives, cds, and solid state drives. Initially, volatile memory, like RAM was much faster than these non-volatile storage memories, but that distinction is becoming less and less true today.
Mental Wellness – Basics is a course that introduces adolescents to concepts …
Mental Wellness – Basics is a course that introduces adolescents to concepts related to mental health and wellness. Stigma associated with mental health can have serious and negative impacts on help-seeking behaviors, and many mental health conditions and symptoms can be significantly lessened through prevention. As such, this course will do the following:
Support students in identifying threats to mental health early, and taking measures to increase factors that protect mental health. Attempt to reduce stigma by introducing students to the experiences of others in order to develop awareness and empathy, as well as by providing facts on the prevalence and symptoms of mental health conditions. Foster a mental health mindset in students and help them develop feelings of self-efficacy by introducing knowledge and skills that promote and model advocacy for self and others.
This Course Covers Self Awareness Self Management Relationship Skills Social Awareness Responsible Decision-Making
With Mentimeter you have lots of options. One great option is to …
With Mentimeter you have lots of options. One great option is to create interactive quizzes that will make your classroom fun. What better way to get students excited about learning than to introduce a fun interactive game or quiz to the classroom? Create some friendly rivalry between students and create a sense of community by using an interactive quiz. Switch up standard teaching techniques and wake up students with some interactive games.
Mentimeter allows you to build interactive presentations with the easy-to-use online editor. Add questions, polls, quizzes, slides, images, gifs and more to your presentation to create fun and engaging presentations.
Your audience uses their smartphones to connect to the presentation where they can answer questions. Visualize their responses in real-time to create a fun and interactive experience.
Once your Mentimeter presentation is over, share and export your results for further analysis and even compare data over time to measure the progress of your audience.'
In this activity, students will learn about the Mercalli Scale for rating …
In this activity, students will learn about the Mercalli Scale for rating earthquakes. Also, students will make a booklet with drawings that represent each rating of the scale.
Students explore Mercury and Venus, the first and second planets nearest the …
Students explore Mercury and Venus, the first and second planets nearest the Sun. They learn about the planets' characteristics, including their differences from Earth. Students also learn how engineers are involved in the study of planets by designing equipment and spacecraft to go where it is too dangerous for humans.
Students observe and discuss a cup and pencil model of a cyclone …
Students observe and discuss a cup and pencil model of a cyclone to better understand the science behind how this pollutant recovery method functions in cleaning industrial air pollution.
In the face of a changing climate, the Tribe is building capacityand …
In the face of a changing climate, the Tribe is building capacityand climate resiliencethrough forestry management, habitat protection, and an innovative approach to healthy eating.
In this activity, students investigate the properties of a heterogeneous mixture, trail …
In this activity, students investigate the properties of a heterogeneous mixture, trail mix, as if it were a contaminated soil sample near a construction site. This activity shows students that heterogeneous mixtures can be separated by physical means, and that when separated, all the parts will equal the whole.
Today we’ll explore more about two of the three main types of …
Today we’ll explore more about two of the three main types of materials that we use as engineers: metals and ceramics. We’ll discuss properties of metals, alloys, ceramics, clay, cement, and glass-ceramic materials. We’ll also look at the applications of our materials with microelectromechanical systems and accelerometers.
The goal of this activity is for students to learn how to …
The goal of this activity is for students to learn how to tell a story in order to make a complex topic (such as global warming or ozone holes) easier for a reader to grasp. Students realize that the narrative impulse underlies even scientific and technical writing and gain a better understanding of the role of myth as a "science" of imagination that helps us to gain insight into human motivation.
Students explore the relationships between genetics, biodiversity, and evolution through a simple …
Students explore the relationships between genetics, biodiversity, and evolution through a simple activity involving hypothetical wild mouse populations. First, students toss coins to determine what traits a set of mouse parents possesses, such as fur color, body size, heat tolerance, and running speed. Next they use coin tossing to determine the traits a mouse pup born to these parents possesses. These physical features are then compared to features that would be most adaptive in several different environmental conditions. Finally, students consider what would happen to the mouse offspring if those environmental conditions were to change: which mice would be most likely to survive and produce the next generation?
It's all about the SUPER TINY in this episode of Crash Course: …
It's all about the SUPER TINY in this episode of Crash Course: History of Science. In it, Hank Green talks about germ theory, John Snow (the other one), pasteurization, and why following our senses isn't always the worst idea.
Students design systems that use microbes to break down a water pollutant …
Students design systems that use microbes to break down a water pollutant (in this case, sugar). They explore how temperature affects the rate of pollutant decomposition.
This is a website about microbiology. Learners may explore information about microorganisms, …
This is a website about microbiology. Learners may explore information about microorganisms, extremophiles and extreme habitats, as well as the ecology, diversity and evolution of micro-organisms.
Microbiology covers the scope and sequence requirements for a single-semester microbiology course …
Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.
Students obtain a basic understanding of microfluidic devices, how they are developed …
Students obtain a basic understanding of microfluidic devices, how they are developed and their uses in the medical field. After conducting the associated activity, they watch a video clip and learn about flow rate and how this relates to the speed at which medicine takes effect in the body. What they learn contributes to their ongoing objective to answer the challenge question presented in lesson 1 of this unit. They conclude by solving flow rate problems provided on a worksheet.
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