playforce.org - Playforce: Learning from the games we play Demonstrations Purpose These demonstrations allow students to observe a wide variety of chemical reactions, most of which should not be performed by students for safety reasons. Be sure to keep students actively involved by directing them to make observations and consider questions during demonstrations. They could be asked to write down observations. Safety Wear eye protection and an apron throughout the demonstrations. Demonstration 1: Magnesium Burning Materials Magnesium ribbon, Mg, 3-5 cm strip Burner Crucible tongs Safety Caution students not to look at flame directly. The Demonstration Light the burner. 2Mg(s) + O 2 (g) --->2MgO(s) Demonstration 2: A Penny in Nitric Acid Erlenmeyer flask, 1000-mL Penny, pre-1983Conc. Conduct the reaction in the hood-the fumes are toxic. This reaction must be performed in a fume hood. Cu(s) + 4HNO 3 (aq) ---> Cu(NO 3 ) 2 (aq) + 2NO 2 (g) + 2H 2 O(l) Demonstration 3: Formation of a Precipitate Properly dispose of the lead compound formed. Demonstration 4: Replacement Reaction
KS3 CHEMISTRY Science Quizzes revision notes Practice Questions multiple choice quiz worksheets crossword puzzles exercises Doc B's revising for KS3 SCIENCE Doc Brown's Chemistry KS3 chemistry revision notes and practice questions KS3 CHEMISTRY and Earth Science multiple choice revision QUIZZES I appreciate SAT levels have gone, but I hope these KS3 chemistry Quizzes will still be of some use. SEE ALSO the KS3 Science Quiz compilations 20 Question multiple choice QUIZ on ORGANISMS, BEHAVIOUR and HEALTH 20 Question multiple choice QUIZ on CHEMICAL and MATERIAL BEHAVIOUR 20 Question multiple choice QUIZ on ENERGY, ELECTRICITY and FORCES 20 Question multiple choice QUIZ on THE ENVIRONMENT, EARTH and UNIVERSE KS3 Chemistry and Earth Science Multiple Choice Questions The KS3 Chemistry Questions are selected at random from big databases. PLEASE NOTE: (1) <= back on the link bar returns you to the previous web page. (2) Don't use the usual refresh button on the upper browser to repeat the quiz, use the REPEAT QUIZ - fresh Q's on the quiz link bar. Multiple choice quizzes for KS3 CHEMISTRY & Earth Science version on pH and
NSTA Learning Center Details Description Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. Additional Info Technical National Standards Correlation Systems Thinking Games Systems Thinking Games, developed in partnership with Filament Games, are designed to be used by youth and educators to assess systems thinking skills both in the classroom and in afterschool contexts. A precursor to the GlassLab, this project brings together teachers, assessment experts and game designers and developers to collaboratively design and build a suite of games with data tools that support teachers in evaluating the way players approach problem-solving, and the strategies players use in understanding and interacting with complex systems. Currently, research is underway to develop assessment frameworks that yield valid and reliable assessment measures across the suite of digital games. To learn more, please join the Institute’s community for updates on our progress.
Edheads - Activate Your Mind! Chemistry, Life, the Universe, and Everything: A New Approach to General Chemistry, and a Model for Curriculum Reform - Journal of Chemical Education (ACS Publications and Division of Chemical Education) † Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States ‡ Molecular, Cellular and Developmental Biology and CU Teach, University of Colorado, Boulder, Colorado 80309, United States J. Chem. Educ., 2013, 90 (9), pp 1116–1122 DOI: 10.1021/ed300456y Publication Date (Web): August 21, 2013 Copyright © 2013 The American Chemical Society and Division of Chemical Education, Inc. Section: Abstract The history of general chemistry is one of almost constant calls for reform, yet over the past 60 years little of substance has changed. Citing Articles View all 3 citing articles Citation data is made available by participants in CrossRef's Cited-by Linking service. This article has been cited by 2 ACS Journal articles (2 most recent appear below).
Path to the Periodic Table Lesson Overview This activity allows students to re-create the thought process that Dmitri Mendeleev and Julius Lothar Meyer went through to devise their early periodic tables. The students are given cards (provided at the end of the teacher activity page), each with the name of an element, its symbol, and some properties. The students are then asked to sort the elements into a table of some sort, in any way that makes sense to them. The activity is carried out in three steps. Student Ability Level and Grouping This activity is appropriate for high school introductory chemistry students or ninth-grade physical science students. Expected Student Background and Skills Students should have an understanding of elements and compounds, as well as of atoms and molecules. Time and Materials Required This activity can be completed in 20 to 30 minutes. Learning Objectives Students will gain an understanding of how the periodic table is organized. National Science Education Standards Science as Inquiry
Halflife The applet lists a "halflife" for each radioactive isotope. What does that mean? The halflife is the amount of time it takes for half of the atoms in a sample to decay. The halflife for a given isotope is always the same ; it doesn't depend on how many atoms you have or on how long they've been sitting around. For example, the applet will tell you that the halflife of beryllium 11 is 13.81 seconds. Hmmm...so a lot of decays happen really fast when there are lots of atoms, and then things slow down when there aren't so many. That's exactly right. Notice how the decays are fast and furious at the beginning and slow down over time; you can see this both from the color changes in the top window and from the graph. You'll also notice that the pattern of atoms in the top picture is random-looking, and different each time you run the applet, but the graph below always has the same shape.
Digital Games Transforming K-12 Assessment and Learning Many teachers are searching for new ways to engage their digital-native students. They are looking for, write researchers at Florida State, “alternative ways of teaching – ways that increase student engagement and yield a rich, authentic picture of the learner(s).” These researchers say more educators should take a look at the latest in digital games. Games that are designed not only to teach, but to help educators assess learning as it’s happening. GlassLab, a new nonprofit educational game design initiative, has just released its first game— SimCityEdu—based on the popular Simcity brand and called SimCityEDU: Pollution Challenge! The Games, Learning, and Assessment Lab, or GlassLab is a unique partnership between the nonprofit Institute of Play (known for their Quest to Learn schools), the game-design firm Electronic Arts, and others. “One of the things that we all get frustrated with is that kids get assessed in the spring and they get that data and feedback back in the fall.