In this unit designed for an integrated middle school science classroom, students …
In this unit designed for an integrated middle school science classroom, students investigate why athletes ice injuries. This leads students to wonder why actual bags of ice are used instead of the instant ice packs found in first aid kits. Students then investigate the chemical reaction occurring within an instant ice pack and work to develop a better design.
Anchoring Phenomenon: First aid care for musculoskeletal injuries using bags of ice instead of instant ice packs containing an endothermic chemical reaction.
NGSS PEs Addressed: MS-PS1-1; MS-PS1-2; MS-PS1-5; MS-PS1-6; MS-PS3-3; MS-LS1-8; MS-ETS1-1
This activity helps students understand how mixtures are formed. They will make …
This activity helps students understand how mixtures are formed. They will make predictions regarding the rate of mixing. Students should report that the variation of heated water and crushed sugar creates the shortest mixing time.
This writing assignment is in lieu of a laboratory activity during the …
This writing assignment is in lieu of a laboratory activity during the discussion of nuclear chemistry within the general chemistry curriculum.
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This video is the second lesson in the How Cold Is Cold? …
This video is the second lesson in the How Cold Is Cold? BLOSSOMS series and examines the properties of materials under low temperature conditions. The video consists of a series of fascinating demonstrations with liquid nitrogen, which boils at 77K (-196 C -321 F). These demonstrations include the following: What goes up, may not come down; Is that supposed to be cold? - thermal insulation; Some properties of liquid nitrogen; Making ice cream - the slow way and the fast way; Try not to explode: expansion of liquid nitrogen and the ideal gas law; Making the air cold: phase changes and the affect on volume; No frozen fingers: the changes in mechanical properties; Resistivity at 77K; The magic magnet: the Meissner Effect; Cautions in using liquid nitrogen
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This illustrated essay from A Science Odyssey Web site explains the science …
This illustrated essay from A Science Odyssey Web site explains the science behind radio waves, including the role of electrons and electromagnetic fields.
This activity focuses on the role of photosynthesis in a sustainable future. …
This activity focuses on the role of photosynthesis in a sustainable future. Students explore the effect of photosynthesis and respiration in a 'closed systems' containing plankton, marine plants, and fish. By calculating carbon dioxide uptake and production in these systems, they predict a plant: animal ratio sufficient to maintain a system in carbon dioxide 'balance' for one hour.
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Students develop an estimate of the total quantity of petroleum discharged from …
Students develop an estimate of the total quantity of petroleum discharged from the Deepwater Horizon from 20 April to 15 July 2010 using only two known facts, the diameter of the riser and the flow rate of the oil/gas mixture emanating from the riser.
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Spreadsheets Across the Curriculum module. Students build a spreadshet to calculate grams …
Spreadsheets Across the Curriculum module. Students build a spreadshet to calculate grams solute to add to liters solvent to produce solution of desired concentration (mol/L).
Students use basic aqueous geochemistry knowledge to investigate controls of the atmospheric …
Students use basic aqueous geochemistry knowledge to investigate controls of the atmospheric carbon dioxide level on pH values of the wet precipitation at standard conditions (25 oC, 1 atmospheric pressure).
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SSAC Physical Volcanology module. Students build a spreadsheet to calculate velocity of …
SSAC Physical Volcanology module. Students build a spreadsheet to calculate velocity of rising magma in steady-state Plinian eruptions using conservation of mass and momentum.
This video shows different chemical reactions which can make things interesting and …
This video shows different chemical reactions which can make things interesting and look like magic. The name of the chemicals is also given using which everyone can learn.
In this activity, students investigate how the atmosphere changes with altitude. They …
In this activity, students investigate how the atmosphere changes with altitude. They will obtain atmospheric data for locations of their choosing using online resources, graph it, and examine it to answer questions about changes in temperature, pressure, humidity, and dewpoint with altitude.
If you were given a chemical and told to identify it, how …
If you were given a chemical and told to identify it, how would you go about doing that? You could look at different factors like color, boiling point, melting point, or smell, but the answer still might not be clear. Thankfully, today we have a more precise, higher-tech way of identifying chemicals called Nuclear Magnetic Resonance, or NMR. In this episode of Crash Course Organic Chemistry, we’ll look at how NMR allows us to visualize a molecule as a spectrum, and what the peaks on the spectrum tell us about the structure of the molecule.
Learning to talk about chemistry can be like learning a foreign language, …
Learning to talk about chemistry can be like learning a foreign language, but Hank is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native.
Chapters: Determining Formulas and Names of Monatomic Ions Finding Cation-and Anion Forming Elements on the Periodic Table Writing Formulas and Naming Transition Metals Naming Acids and their Anions
How to be a successful organic chemist is meant as an introductory …
How to be a successful organic chemist is meant as an introductory text for undergraduates taking organic chemistry teaching labs. The text is a clear and practical introduction to safety, chemical handling, organic chemistry techniques, and lab reports.
This video segment adapted from the Space Telescope Science Institute shows what …
This video segment adapted from the Space Telescope Science Institute shows what the Hubble telescope found when it stared at a single, nearly empty spot in the sky for 10 days in 1995. The unexpected result was a picture of a multitude of galaxies stretching into the distance.
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