Tonicity: a measure of the osmotic pressure gradient (as defined by the water potential of the 2 solutions) of 2 solutions separated by a semipermeable membrane; commonly used when describing the response of cells immersed in an external solution; influenced only by solutes that can't cross the membrane, as only these exert an osmotic pressure; solutes able to freely cross the membrane don't affect tonicity because they will always be in equal concentrations on both sides of it
Great visual: thinking of having each student assigned an element. linking arms with another student or students to make compounds, and simulating mixtures without linking arms to demonstrate the difference between the three terms Grade 8 Physical Science Compounds, Mixtures, & Solutions
Test your students knowledge on the three states of matter, mixtures, solutions, physical properties and more. Challenge them with defining vocabulary words, correcting false statements about matter and fill in the blanks using a word bank. This quiz is also included in a whole unit on matter that can be purchased here .
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This app requires an account from Werkz Publishing. Contact them for a free account and trial access. *****A perfect app for a physical science, chemistry or integrated science course that is designed to engage students to explore the the concepts of solutions and suspensions. It is designed to address the needs of all students in the topic.*****Covers the subtopics of: - What does it mean for substances to dissolve? - How do substances dissolve? - What does it mean to be a so...
website where you can download Inquiry In Action a free book of activities that teach chemistry and physical science published by the American Chemical Society.
Question: What do you call a tooth in a glass of water? Answer: A one molar solution. This is a chemistry joke. A Mole is a unit of measurement used in chemistry to express amounts of a chemical substance, defined as the amount of any substance that contains as many elementary entities as there are atoms in 12 grams of pure carbon-12, the isotope of carbon with relative atomic mass 12.