Boiling Point Teacher Resources
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If you've ever wondered why crystals are so strong and hard, Sal does a fine job of explaining, in chemistry terms, why this is so. Crystals are great examples of covalent networks; which are the strongest and hardest substances in the chemical world. Boiling points and the strength of covalent bonds are used to illustrate how weak or strong a chemical bond is.
Learners investigate how the concentration of solute molecules in a given volume so thus a larger mass, more diluted solution is made. The relationship is tested using three different experiments. Background knowledge in chemical concentration and dilution is necessary.
In this stoichiometry worksheet, students review definitions and equations associated with molarity, density, atomic mass, molarity, and dilutions. This worksheet has 18 word problems.
Don't you wish you had the time to type up a study guide for your chemistry class? With this resource, there is no need! A chart comparing the properties of metals and non-metals tops the handout, followed by notes on the reactivity series. Finally, you will find an overview of fossil fuels. Use this as an outline for your lecture or to give a copy to junior chemists as notes or a study guide.
Consider our energy sources: wood, coal, oil, uranium. Learners compare the pollution to energy produced for each. They practice fractional distillation of an alcohol/water mixture to simulate the process of refining crude oil. Thought-provoking questions are assigned as a follow-up to the laboratory exercise. This is an outstanding resource to add to your physical or earth science repertoire.
Tenth graders recognize the importance of water in their daily lives. They are aware of environmental issues of water quality and proposed solutions.
Students observe how salinity affects the time it takes water to freeze. They participate in an experiment to determine that ice is essentially salt-free whether formed from fresh or salt water
Eighth graders explore the physical change of matter. As a class, they discuss their favorite super hero and determine if the hero undergoes a physical or chemical change. Students examine the change of state and phase change. In groups, they follow instructions to a recipe and make ice cream by shaking the ingredients in a freezer bag. Afterward, they study the melting, freezing and boiling points and discover explanations as to why their ice cream experiment worked.
Ninth graders examine the Periodic Table. In this element lesson plan, 9th graders observe the chemical reactivity of elements. They graph the properties and discuss the trend in the group and period of elements. The students use math to analyze periodic trends.
A table of the physical properties of metals and non-metals opens this high-school chemistry handout. Also covered are the chemical properties of metals and non-metals, reactivity, and fossil fuels. There are no specific questions to answer in this resource; however, it is a valuable outline of skills and concepts that a general chemistry learner should master. You can use it to solidify your own objectives for your class, or distribute it as a study guide.
Students explore physical and chemical changes. In this chemistry lesson plan, students will go outside to observe changes seen in nature. Students will then work in the lab to identify changes at different stations prior to doing a vocabulary activity.
Chemistry lab learners experiment to identify a series of unknown compounds. They choose which tests to perform, but you may suggest melting or boiling point, solubility, electrical conductivity, and malleability. This is a terrific laboratory activity that requires your class to exercise their critical-thinking skills. Note that you will need to think through what materials and equipment you need to make available for them as the teacher notes leave this information out.
In this chemistry worksheet, students determine the order of reactivity toward displacement in each of the series listed. Then they respond to several multiple choice questions as they relate to compounds and solutions. Students also identify various products from each of the sequence of reactions listed.
Ninth graders participate in classroom discussions, demonstrations and hands-on laboratory activities about pure substances and mixtures with a focus on common household materials. They investigate: What is a pure substance? What is a mixture? How difficult is it to obtain pure substances?
Ninth graders explore various substances. In this household materials lesson students complete a freezing point lab and use data to assess the purity of substances.
The formatting of this worksheet is a little problematic, but the questions are applicable to the topic of phase changes in matter. It consists of seventeen short-answer questions and would make a purposeful homework or review for a test.
Ninth graders observe the chemical reactivity of both a group and a period of elements through a teacher demonstration. They graph various properties and explain the trends in both a group and a period of elements.
Students design and contrast a boat made out of aluminum foil. They test the boats to see which boat floats the best using three different solutions and steel ball weights. Students work on their own to construct a boat of their own design. As a group, they test the boats to see which boat floats the best.
Eighth graders determine the presence of starch and sugar in unknown solutions. This task assesses students' abilities to observe, record and interpret data, classify, generalize/infer, construct data tables, and identify sugar and starch solutions.