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American Chemical Society: Middle School Chemistry
Introduce middle schoolers to the basic principles of chemistry with a curriculum set packed with activities and experiments that let learners explore the attractions and motion of atoms and molecules, the state changes of water,...
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Middle School Chemistry: Chapter 2 - Changes of State
The second module in the middle school chemistry unit looks at changes in the states of matter. Middle schoolers observe heat transfer, build molecular models of water from Styrofoam, conduct controlled experiments with condensation and...
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Activity Book: Discover Your Changing World With NOAA
Introduce middle schoolers to the essential principles of climate science with a collection of 10 activities. Class members learn about the Earth’s climate systems, factors that change these systems, and the impacts of those changes....
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Investigating How Heat Flows
It is impossible to cool down a glass of water by adding ice. Young scientists explore heat transfer through videos, experiments, and interactive games. They quickly catch on that the water melts the ice and things aren't always as they...
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Heat Transfer and Cooling
Astronauts train underwater to simulate the change in gravity. An out-of-this-world unit includes three hands-on activities, one teacher demonstration, and a discussion related to some of the challenges astronauts face. Scholars apply...
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PS3A - Definitions of Energy
Energy has many forms ... but very few sources! How do we present this to young scientists? Explore the Definitions of Energy, PS3A, in a video about the Next Generation Science Standards. The narrator keeps it simple by relating each...
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Energy Changes in Chemical Reactions
The heat of solution measures how much thermal energy a dissolving substance consumes or gives off. The experiment demonstrates both endothermic and exothermic reactions. Scholars dissolve several substances, measure the temperature...
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Plugging into the Sun
What's cooking? A sizzling STEM unit challenges scholars to build a solar cooker that can successfully cook an egg. The unit opens with a study of Earth's rotation, the sun's energy, and shadows. Pupils use a compass and thermometer to...
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Changing State: Melting
Dry ice is extremely cold — it is -109.3°F or -78.5°C. Scholars observe and explain the molecular motion associated with melting. Then they design their own experiments to speed up the melting process. Finally, a teacher presents a...
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Changing State: Freezing
There are five types of frost: ground frost, air frost, hoar frost, glaze, and rime. Scholars mix ice and salt in a metal container to observe frost forming on the outside of the can. Animations and videos enhance the learning.
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Heat, Temperature, and Conduction
How does heat move from one item to another, even when the items are in different states of matter? Pupils experiment with adding washers to hot water and adding hot washers to room temperature water to observe the heat transfer.
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States of Matter
Water is the only molecule on Earth that can naturally exist in all three states of matter. The interactive simulation shows different molecules changing states of matter with the addition or removal of heat. Learners then see how...
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Changing State: Condensation
When you have a cold drink and you notice the water forming on the outside, it is literally pulling the water from the surrounding air to form the condensation. After watching a demonstration of condensation forming on a glass,...
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Can Humans Really Feel Temperature?
Explore thermal energy with this short episode. Jiggling molecules and hand-drawn animation help to explain that just because something has a lot of thermal energy, it doesn't necessarily feel hot to the touch. This is an ideal addition...
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Next Generation Science Standards
Are you having trouble deciphering the Next Generation Science Standards on the website, or just trying to find the standards for your grade in a quick-and-easy format? If so, here is a free and easy-to-navigate app made with you in mind.
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Kitchen Chemistry - Lava Lamp, Elephant Toothpaste
New ReviewThe bigger the better! A hands-on activity has learners explore chemical reactions with large results. They mix chemicals to create the classic elephant toothpaste and a chemical lava lamp. They connect their observations to the concepts...
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Thermal Energy
New ReviewIs it possible to blow up a balloon without touching it? By placing a cold bottle and balloon system into hot water, groups demonstrate how thermal energy causes gas expansion. Scholars place the bottle in cold water and reverse the...
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Variables Affecting Solar Power
New ReviewDetermine the best energy generator. Groups play with a photovoltaic cell to determine the variables that affect its energy output. The teams investigate a variable to determine the optimum performance of the solar cell. Pupils compare...
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Variables Affecting Wind Turbine Power
New ReviewDesign the best from the best. Groups work together to come up with the best configuration of different variables that affect a wind turbine. The teams choose from several variables such as the number of blades, the angle of the blades,...
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Heating and Cooling of the Earth's Surface
Scholars collect data from heating sand and water before forming testable hypotheses about why sand heats up faster. Afterward, they develop and run experiments to test their hypotheses.
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Climate, Weather…What’s the Difference?: Make an Electronic Temperature Sensor
What's the best way to record temperature over a long period of time? Scholars learn about collection of weather and temperature data by building thermistors in the fourth installment of the 10-part Discover Your Changing World series....
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STEMonstrations: Spacewalk Part 1: Safety and Training
What does it take to protect astronauts from the elements? Budding scientists watch an installment from the STEM on Station series to learn about the training procedures astronauts complete to prepare for space walks. The accompanying...
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STEM Construction Block Activities
Build on techies' knowledge of engineering design. A set of STEM lessons for grades one through six provides instructors with suggestions for engineering instruction. The activities require pupils to design and build structures, such as...
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It's Melting!
It's a race to the finish! Which ice cube will melt the fastest? Scholars discover the effect thermal energy has on melting ice. They experiment with melting ice cubes on different materials and learn that even at a consistent...