Percent Increase and Decrease Quiz
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Mechanisms and Machines 5 pdf format
1. Introduction-If power transmitted between two shafts is small, motion between them may be obtained by using two plain cylinders or discs 1 and 2 as shown in fig. -If there is no slip of one surface relative to the other, a definite motion of 1 can be transmitted to 2 and vice-versa. Such wheels are termed as “ friction wheels”. However, as the power transmitted increases, slip occurs between the discs and the motion no longer remains definite. -Assuming no slipping of the two surfaces, t
Not Specific
General Science, Physical Science
Also included in: Mechanisms and Machines bundle
Velocity and Acceleration Analysis
Velocity and Acceleration Analysis-There are many methods for determining the velocity of any point on a link in a mechanism whose direction of motion (i.e. path) and velocity of some other point on the same link is known in magnitude and direction, yet the following two methods: 1Instantaneous centre method 2Relative velocity method -The instantaneous centre method is convenient and easy to apply in simple mechanisms, whereas the relative velocity method may be used to any configuration dia
Not Specific
General Science, Physical Science
Also included in: Mechanisms and Machines bundle
Robert Page, the Father of Radar
Robert Page was a physicist and a pioneering "Hidden Hero" whose work at the Naval Research Laboratory (NRL) gave the United States a massive technological edge. He is often called the "Father of U.S. Radar" because he solved the critical problem of how to make radar practical for actual combat.+1 The Problem: The "Wall of Silence"In the early 1930s, the concept of using radio waves to detect objects was known, but the technology was "blind." Scientists could send out a radio signal, but they c
4th - 9th
General Science, Informational Text, Reading
CCSS
RI.4.1
, RI.4.2
, RI.4.3
+1
Also included in: The Hidden Heroes Mega Bundle
All About Me (First Day of School Activity)
Are you a first-year teacher? Did you move schools and are starting fresh? Get to know your students during the first week with this fun activity. Learn their goals and expectations for the year and dive deeper into who each student is.
7th - 12th
General Science, Instructional Technology
Zoology Full-Year Curriculum Bundle
Bring your Zoology course to life with a curriculum that goes beyond memorization and dives into what it actually means to be a zoologist. Whether you're teaching a full-year or a semester-long class, this complete Zoology Curriculum Bundle includes everything you need: vibrant, modern PowerPoints, interactive guided notes, engaging daily classwork, study guides, and assessments. Finished in 2025, it's structured, flexible, rigorous, and full of the resources Zoology teachers rely on, from trad
10th - 12th
Biology, General Science, Science
Journey to the Center of the Earth (2008) Video Activity for Science
Video questions for 2008 Journey to the Center of the Earth with Brenden Fraser with "Before, During, and After" questions. Activity designed for a Science Cinema course unit focused on Early Earth. Questions investigate misconceptions, plot, and application of science content using internet resources. Journey 2: The Mysterious Island Video Activity for ScienceIce Age Video Science ActivityLand Of The Lost Video Science ActivitySan Andreas (2015) Video Activity for Science
7th - 12th
Earth Sciences, General Science, Science
4th Grade NGSS Science Task Cards Net Force Motion Energy Transfer Collision #2
Force - Motion - Energy Forms - Unbalanced Forces - Sound light energy This resource includes 20 carefully aligned task cards designed to help students understand how energy is transferred and transformed through motion, sound, heat, and simple systems. Each question is written to reflect true NGSS performance expectations, not just surface-level vocabulary. These task cards are ideal for Grade 4 classrooms, NGSS-adopting states, intervention groups, science centers, or assessment prep. 🔬
3rd - 4th
General Science, Other (Science), Physical Science
NGSS
3-PS2-1
, 4-PS3-4
, 3-PS2-3
+2
" THE BALANCE OF HEIGHTS"
🌍⚖️ WHAT IF THE WORLD WASN’T UNBALANCED… YOU JUST DIDN’T KNOW HOW TO READ IT? Across Three Worlds: A Journey of Discovery 📖 The Balance of Heights A mysterious scale appears… ⚖️ It rises. ⚖️ It falls. ⚖️ It refuses to stay still. 🧭 To understand it, three children must travel across the world— and discover how people live in places where the environment changes everything. 🇵🇪 In Peru, life happens high above the clouds. Breathing is harder. Movement is slower. People don’t fight the land
1st - 6th
Close Reading, General Science, Marine Science
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