American Chemical Society
Changing State: Freezing
There are five types of frost: ground frost, air frost, hoar frost, glaze, and rime. Scholars mix ice and salt in a metal container to observe frost forming on the outside of the can. Animations and videos enhance the learning.
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Water Magicians
First graders observe water changing states from a solid to a liquid to a gas. They predict what they think happen to ice cubes as they sit out. They paint water with paintbrushes outside the classroom in the sun and watch the water...
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Activity #8 Which State Are You In?
Middle schoolers define, give similarites and differences between solids, liquids, and gases. They compare and contrast a solid, liquid and gas in terms of shape, volume, compressibility, diffusion and density. Pupils classigy common...
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Dimensional Analysis #2
In this dimensional analysis learning exercise, students solve ten conversion problems where they find moles, mass, and molecules using dimensional analysis.
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Under Pressure
In this pressure activity, students read about Dalton's Law of Partial Pressure, about vapor pressure and about collecting gases over water. They answer 6 questions using the concepts of Dalton's Law of Partial Pressure and they solve 4...
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Somethin' Sweet
Young scholars make their own candy. In this science lesson plan, students observe how molecules interact with each other in physical changes and observe how the addition of heat can cause molecules to interact and form new molecules in...
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Why Do Hot Air Balloons Float?
In this gases activity, students read about the Kelvin scale of temperature, they answer 3 fill in the blank questions about the relationship between temperature and pressure and they plot the temperature and pressure of gas samples at...
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Matter and Energy
In this matter and energy worksheet, students identify substances as solids, liquids or gases, they use the kinetic theory to describe the motion of particles and they explain the conservation of mass and energy when a substance changes...
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Extracting Oxygen from Moon Rocks
In this extracting oxygen from moon rocks instructional activity, students read about the need for oxygen for lunar colonists. Students solve 2 problems about the lunar mineral ilmenite which contains oxygen and other elements. They find...
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Water the Universal Solvent
In this water and solvent activity, students answer 20 questions about solutes, solvents, polarity in molecules, and the characteristics of water as a solvent. Students answer 3 questions about the lab they completed using temperature to...
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The Mole
Students investigate moles and Avogadro's hypothesis. In this moles lesson plan, students complete a worksheet by finding the volume of 1 mole of each substance given its density and they find the number of molecules, the formula, the...
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Convection and Wind
Learners use water, beakers, hot plates, paper dots, and goggles to participate in a hands on activity where they see how a convection current creates wind. In this convection current lesson plan, students participate in a hands on...
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Dissolving Solids and Gases
In this dissolving solids and gases learning exercise, high schoolers learn that the process of dissolving gas is opposite of the process of dissolving solids. Students answer 3 critical thinking questions about dissolving gases and...
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The Nature of Chemical Change: Acting Out An Example
Young scholars illustrate the molecular nature of matter and show that chemical change involves alteration of molecules.
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Selling The Molecular Kinetic Theory
Students investigate molecule movement according to the kinetic molecular theory. In this kinetic molecular theory lesson plan, students observe demonstrations showing that molecules speed up with increasing temperature and slow down...
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Physical and Chemical Properties of Matter
Students identify the physical and chemical properties of matter. They review the types of matter. Students list the four states of matter (Solid, Liquid, Gas and Plasma). They recognize and describe the different types of matter.
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WS 10.5 Organic Compounds
In this organic compounds worksheet, students write the structural formulas for four compounds, they draw isomers for given molecules and they draw line formulas for given cycloalkanes and haloalkanes.
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Photosynthesis Explored
Students observe the production of gas as an effect of photosynthesis. In this biology instructional activity, students perform an experiment with pondweed and make measurements and predictions about photosynthesis and the plant.
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A Star Sheds a Comet Tail!
For this comet tails and stars worksheet, students read about the star Mira and the vast clouds of gases it emits. They use a photograph from the Galaxy Evolution Explorer satellite to solve 5 problems about the scale of the image, the...
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Solutions
In this solutions learning exercise, students solve twelve problems including calculating products made in reactions, determining limiting reagents, calculating molarity of solutions, determining percent composition, and finding volumes...
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Exothermic and Endothermic Reactions
Students observe demonstrations of exothermic and endothermic reactions and determine the changes that take place in a chemical reaction. Students observe four demonstrations showing entropy, attraction of molecules due to polarity,...
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Bhopal - Covalent Bonding
Using the chemicals that leaked in the Bhopal gas tragedy of 1984, chemists examine covalent bonds. Provide for them the chemical reactions and have them draw Lewis diagrams for the molecules involved. That's about all there is to the...
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Solids, Liquids, Gases
There are three states of matter, liquid, solid, and gas. Each are covered briefly in this very short presentation. The energy cycle is depicted in a chart and the states of matter are defined but this isn't a complete or...
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Percentage Composition
In this chemical compounds worksheet, students determine the empirical formula or the molecular formula for the compounds given. Students calculate percent composition. This worksheet has 10 problems to solve.