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Osmotic Pressure Teacher Resources
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Here is an attractive learning exercise that walks chemistry learners through a review of aqueous solutions. There are matching, short answer, and multiple choice questions dealing with boiling and freezing points, precipitate, molality, net ionic equations, and osmotic pressure, all colligative properties. Assign it as homework to help prepare for a quiz.
In this phase change worksheet, students answer twenty questions about changes in energy to a system. They analyze phase diagrams, the determine the effects of changes in temperature on a system, they answer questions about miscibility, vapor pressure, osmotic pressure and solubility.
This sequence of increasingly difficult questions about concentration asks learners to calculate the mass or amount of a substance in a solution. The questions then tests understanding by asking for an evaluation of boiling points, vapor pressure, osmotic pressure, and freezing points of certain solutions. An excellent test of comprehension, as questions are phrased in different ways, and calculations are needed, but not presented as such.
The 2009 version of the first part of a national chemistry competition is posted for your use with olympiad hopefuls. Test takers deal with 60 multiple choice questions covering an entire year of chemistry curriculum. Use this to practice for the competition or to prepare for a final exam on behavior of gases, properties of metals, chemical reacitons, pH and titration curves, ionizaton energy, molecular geometry, and more!
An information-packed eight-page article detailing the history of understanding active transport across cell membranes makes up the bulk of this handout. Two pages of reading comprehension and critical-thinking questions follow. The article is fascinating and illuminates the importance of aquaporins and the ion channels present in cell membranes. This reading analysis would serve as an enriching assignment for your biology class when studying the cell membrane or homeostasis.
A 30-question multiple choice chemistry test challenges takers. Topics touched upon include thermochemistry, equilibrium, behavior of gases, and pH. Problem solving is required in order to answer most of the questions. Other questions require critical thinking skills and reading phase diagrams. Content is solid, but there are unusual subheadings for each section that may make it undesirable for your use.
A slideshow that covers the all-important details related to basic human circulation. The reasoning for exchange of material methods is presented and then labeled diagrams of the main human transfer systems are shown, along with statements and related facts to increase understanding. The logical and clear presentation will be very useful for your pupils and the PowerPoint can be printed to allow them to fill in the gaps and complete definitions where needed.
Advanced chemistry kids experiment with the freezing and boiling points of various aqueous solutions. They also prepare a presentation of the kinetics of solution formation and structure of the matter involved. This resource provides you, as the teacher, with detailed laboratory instructions as well as extensive background information. You will need to design laboratory sheets so that learners will have instructions on-hand.
Five pages provide thorough coverage of three protozoans: euglena, amoebae, and paramecia. For each, junior biologists read factual text, label the organism, and write answers to several questions. This neatly organized assignment is five pages long and makes an ideal preparation for examining these protists in the laboratory.
Learners conduct experiments on a sample of sea water. In this oceanography lesson plan, students inquire how conductivity is used to approximate the salinity ocean water. Learners construct their own conductivity meters and test solutions made of sodium chloride. Students discover the relationship between concentration of dissolved salt and it's conductivity.