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What Are We?
Learners list and describe three types of surface water pollutants. They observe the effects of various water pollutants on algae growth. Three causes of each surface water pollutant is listed.
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Enzyme Labs Using Jello
Students test for the presence of enzymes in fruit and the specificity of those enzymes, as well as to identify and show the susceptibility of enzymes to certain environmental factors (temperature and pH) originating in the enzyme's...
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Establishing a Baseline Ecology of a Creek Ecosystem
Students investigate the physical, chemical and biological parameters necessary to establish an ecological baseline. Establishing an ecological baseline not only shows the ecological characteristics of a creek but makes the possible...
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Collecting and Classifying Pollen
Learners collect and analyze pollen from different species of plants. In small groups, they classify pollen according to shape, size and physical characteristics. They draw the basic anatomy of flowering plants and create a dichotomous...
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Parts-Per-Million Concentration Lab
Students develop a comprehension of parts per million as a concept. They work in teams to create successive dilutions of a solution to reach a parts-per-million concentration. Students list what they think the atmosphere is made of. They...
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Weathering and Erosion
Students investigate how changes occur on the surface of the earth through erosion and glaciation. They observe what happens to salt and iron after they interact with water and vinegar, and analyze what occurs when water is sprinkled on...
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Understanding pH, Alkalinity, and Hardness
High schoolers comprehend the interactions of pH, alkalinity, hardness, and carbon dioxide in aquaculture water. They read the SRAC fact sheet number 464 "Interactions of pH, Carbon Dioxide, Alkalintiy and Hardness in Fish Ponds." ...
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From One End to the Other
Seventh graders trace a piece of food through the alimentary canal and differentiate between mechanical and chemical digestion in several different hands-on activities related to digestion.
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Investigation 3 - Weathering
Fourth graders study 4 types of weather processes: wind, running water, plant growth, and freezing water. They explain how the processes of weathering and erosion change and move materials that become soil. They draw diagrams...
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Eutrophication Experiments
Observe two different water samples and write down observations. Write a paragraph which predicts the relative amounts of nutrients, nitrates, and phosphates in the water samples. Compare water samples under a microscope.
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What Makes a Habitable Planet?
Students list conditions necessary for humans to survive. They then mix yeast with a nutrient broth consisting of warm water and table sugar in a plastic bottle, capping it with a party balloon and compare the factors within the bottle...
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Review of Cell Organelles
In this cell organelles worksheet, students read the structure and function of different plant and animal cell organelles to determine what organelle is being described. Students write in the 15 organelles into a chart.
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Acids, Bases, and Buffers
In this acids and bases worksheet, students test the pH of different solutions to determine if it is basic or acidic. Students complete 7 short answer questions based on their results.
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Stoichiometry
In this stoichiometry learning exercise, learners review definitions and equations associated with molarity, density, atomic mass, molarity, and dilutions. This learning exercise has 18 word problems.
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Investigating Buffers
Students investigate buffers and their behaviors when used with acids and bases. In this buffers lesson plan, students use a pH meter and create buffered acidic and basic solutions. To each of the buffered solutions students add strong...
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The Nature of Solutions
In this solutions worksheet, students compare different types of solutions and distinguish between the solvent and solute in a solution. This worksheet has 7 matching and 10 short answer questions.
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A Matter of Density
In this density worksheet, students use different liquid densities to determine the order they would settle in if poured in a container together. Students review vocabulary terms associated with the density of matter. This worksheet has...
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Molarity Worksheet
In this molarity worksheet, learners fill in unknowns such as mass of solute, moles of solute, volume of solution and molarity of solution in a chart with given solvents. They also calculate the molarity of solutions in other problems.
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pH Worksheet
In this pH worksheet, students answer ten questions about acids and bases as well as pH. They determine the pH given concentrations of ions in a solution. they also describe various types of acids and bases.
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Mass and Moles Worksheet
In this mass and moles worksheet, students solve fifteen problems which include converting between moles, mass, atoms, molecules and formula units.
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Unsaturated, Saturated and Supersaturated
Students investigate unsaturated, saturated and supersaturated solutions. In this solutions lesson plan, students experiment with sodium acetate and produce three different types of solutions including a saturated solution of sodium...
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WS 10.5 Bronsted-Lowry Acid/Base
In this acid and base learning exercise, students fill in the blanks with terms related to Bronste-Lowry acids and bases and then answer questions about conjugate acids and bases. They write two equations for the ionization of an acid...
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Chapter 3 Worksheet Matter
In this matter worksheet, students answer ten questions about matter including the phase of matter, mixtures and how they are different from compounds, the physical and chemical properties of matter and the difference between homogeneous...
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WS 10.10 Salts and Buffers
In this salts and buffers worksheet, students answer five questions about the acids and bases that form salts as well as the equations for a buffer system.