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Melting Ice
Pupils observe the melting of ice and explore the basic physical changes that occur. They gain information of how different substances change the rate of melting. Students discuss the properties of water and ice, the definition of...
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Cell Respiration
In this biology worksheet, students complete a crossword puzzle with 17 questions about the processes involved in cellular respiration.
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Recognizing and Describing Chemical Changes
Seventh graders distinguish between physical and chemical changes in both natural and technological settings. They identify the reactants and products for a given chemical reaction. they then write simple chemical equations given the...
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Hybridization and Valence Bond Theory
In this chemistry worksheet, students use knowledge of valance bonds in order to answer the in depth application of science problems.
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DNA Extraction
Students are able to extract and observe a visible amount of DNA from Escherichia coli cells. They discuss the properties of DNA. Students confirm the presence of DNA by a reaction with an indicator.
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Playing With Polymers
Students explore the world of polymers. In this chemistry lesson, students make polymers and observe their properties. Follow-up questions and extension activities are included.
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Kernel Power" Ethanol Fuel from Corn
Learners study why corn is a biodegradable, renewable resource. In this ethanol lesson students build models and observe a chemical reaction.
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Electrolysis of Water
Ninth graders examine the electrolysis of water by completing an experiment. In this water lesson students will explain how hydrogen can be extracted from water and how energy flows through an electrolysis system.
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Nanofibers on Your Clothes
Pupils relate the presence of nanofibers in clothing to its ability to repel stains. They observe and contrast the characteristics of nanofiber, Scotchguard treated, and regular fabric then test the stain resistance of each fabric...
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Importance of Digestion
In this digestion worksheet, students complete statements using researched information about digestion and the digestive system. Students also sketch several figures that relate to digestion.
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Photosynthesis and Cellular Respiration
In this energy worksheet, students review the processes that create energy for a cell: photosynthesis and cellular respiration. This worksheet has 11 fill in the blank and 14 short answer questions.
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Electrolytes and Colloids Worksheet
In this electrolytes learning exercise, students calculate percent composition, determine the electrical conduction of electrolytes, and explain the Tyndall effect. This learning exercise has 7 problems to solve.
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Ozone Pollution: Smog Alert
Students examine factors the create smog. In this pollution lesson students complete an activity about ozone.
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Stoichiometry
Students research chemical formulas and balance chemical equations. In this chemical equations lesson students complete a class activity on chemical equations and answer questions.
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Through Thick or Thin!!!
Students differentiate between high and low viscosity. Students collect, graph, and interpret data, then quantitatively measure polymer solids. Students experiment with a household example of an emulsion polymer.
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Evaporation and Condensation
Young scholars explore how temperature affects the processes of evaporation and condensation.
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Ice Cold
Students design and conduct an experiment to investigate what happens when salt and ice come together and to determine if one form of salt is better for melting ice on steps and sidewalks.
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The Water Cycle and Global Warming
Students study the flow of water in the environment. In this water cycle activity students evaluate the consequences of changes in the water cycle using data.
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Oxygen
Young scholars explore oxygen and its physical and chemical propeties. In this investigative lesson students complete several experiments using oxygen.
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Pyrotechnics for Pyromaniacs
Students explore how chemistry is associated with the annual celebration of America's independence. They learn what gunpowder is made of, the anatomy of a firework, how noise is made in fireworks and the safety issues.
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Circle of Life
Learners consider why we eat and where our food obtains its energy. They illustrate food chains that might be found on an open field, dissect owl pellets, identify the remains of animals in the pellets, watch videos and participate in...
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The Nature Of Dissolving Processes
Students examine the rule of "like dissolves like." They define and describe solutions and solubility models on molecular liquids, ionic solids, and molecular solids.
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How do plant & animal cells make and use energy?
Students show the relationship between the need for plants to undergo photosynthesis in order to generate oxygen. They see the flaws associated with this thinking because of the lack of CO2 and H2O and lack of sufficient gravity in order...
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Effects of Acid Rain
Third graders explore the concept of acid rain and its effects on ecosystems. They are placed in groups and using a graphic organizer they brainstorm their ideas about what would happen to the ecosystems living within these environments...
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