Beyond Benign
Essential Oil Extraction Using Liquid CO2
When life hands you lemons ... experiment on them! Green chemistry gurus compare extraction methods for essential oils through a lab activity. Lab groups use traditional distillation and liquid carbon dioxide extraction methods, then...
Curated OER
2000 U.S. National Chemistry Olympiad Part II
In this chemistry olympiad problem solving worksheet, chemistry pupils solve eight problems on a variety of topics including periodic trends, phase changes, ionization reactions, catalysts and titrations.
Science Geek
Thermochemical Calculations
Viewers learn where the heat goes when phase changes take place with a presentation that explains the latent heat of phase changes, or, more specifically, the molar heat of fusion, solidification, vaporization, and condensation. The show...
Science Geek
Basic Thermochemistry
Heat is more than just temperature, as viewers discover throughout a presentation about thermochemistry that emphasizes vocabulary. Definitions include joule, calorie, energy, enthalpy, calorimetry, exothermic and endothermic process,...
Curated OER
Cool Liquids
Chemistry neophytes use a temperature probe to assess the change as five different liquids evaporate. The implantation section suggests that they take readings every five seconds for a total of four minutes. They graph the data, look up...
Curated OER
Phase Changes
In this phase change worksheet, students read about the particles in substances that speed up and slow down for substances to change phases. They answer eight questions about phase changes, the states of matter and how changing...
Curated OER
Chemistry Slide Collection
A huge slide show provides a review of almost every topic there is to cover in basic chemistry! Your young scientists will be interested to see each illustration and example given. The appearance of the 120 slides varies greatly, most...
Curated OER
Version 001 - Quiz 1
The phase diagram tops this chemistry quiz. Junior scientists answer eight multiple-choice questions as they analyze it and make calculations regarding the heat of vaporization.
Curated OER
Sample Midyear Examination (Chemistry and Biology)
A 12-page midterm exam sample can be given to young scientists in preparation for an exam. This particular installment is geared toward a class that delves into both ecology and chemistry concepts. There is no way to separate the 50...
Curated OER
Changing Sugar
In this chemical and physical change worksheet, students use a sugar cube and observe its physical properties both when it is whole and after it is crushed. They heat the sugar cube and record 5 properties of the matter while being...
Curated OER
Heating and Cooling Curves
Students experiment with a pure substance and a phase change. In this heating and cooling curves lesson plan, students study the effects of heating and cooling a pure substance to observe a phase change. They determine both the melting...
Curated OER
Edible Transformations
Learners differentiate the different phases of matter. In this chemistry lesson plan, students conduct several hands-on exercises to discover how matter transforms when mixed together. They identify the different stages in the water cycle.
Curated OER
Stomach Chemistry
Fifth graders compare physical and chemical changes. They perform a simulation experiment/activity that replicates what happens in the stomach as food is digested by stomach acids.
Curated OER
Version 001 – Exam 1 – David Laude (53015) 1
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...
Curated OER
What Changes Occur When Ice Melts?
Learners explore the physical process of melting. They observe melting ice and answer questions related to energy transfer during phase changes.
Curated OER
Chemquest: Physical Changes or Chemical Reactions
Young scholars explore physical and chemical changes. For this chemistry lesson plan, students will go outside to observe changes seen in nature. Young scholars will then work in the lab to identify changes at different stations prior to...
Curated OER
Chemistry First Marking Period Review
In this chemistry review worksheet, students review terms and concepts covered. Students practice metric conversions, factor labeling, temperature conversions, heat calculations, atomic structure, and gas laws. This worksheet has 3...
Curated OER
Ice Cream
Open this instructional activity by giving a brief history of ice cream. Using liquid nitrogen to lower the temperature, preteens make their own confection. The accompanying activity sheet queries learners about freezing point, the...
Curated OER
Phase Changes
In this science instructional activity, students examine the physical changes associated with the change of temperature and mixtures. The answers are included.
Virginia Department of Education
Thermochemistry: Heat and Chemical Changes
What makes particles attract? Here, learners engage in multiple activities that fully describe colligative properties and allow the ability to critically assess the importance of these properties in daily life. Young chemists conduct...
It's About Time
States of Matter: Solid, Liquid, and Gas
Solid, liquid, and gas: they all matter. Scholars create an animation of the various states of matter, experiment with the temperature of water as it changes states, and observe carbon dioxide as it changes states. The lesson also...
Curated OER
The Chemistry of Ice Cream
Students investigate the effects of temperature change on phase changes. They explore the effects of changes in freezing point and incorporate the law of conservation of energy. They utilize these concepts to make ice cream.
Curated OER
Chemistry E3 Lesson Plan
Ninth graders perform a series of experiment to investigate heat transfer and phase changes. In this physical science lesson, 9th graders identify and calculate the different subatomic particles. They explain the importance of scientific...
Science Geek
Bulk Properties of Water
Learn the ins and outs of the properties of water through an engaging slide show. The lesson presents different facts about water including phase change, heat of fusion, heat of vaporization, and specific heat among others.