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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
Students 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
Learners 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
Young scholars 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...
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The Effects of Temperature on Chemical Mixtures
Students explore chemical cahnges and the effect of temperature on chemical mixturees, They make observations of the behavior and appearance of certain chemical mixtures and reactions.
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Understanding pH, Alkalinity, and Hardness
Students 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." Students...
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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 instructional activity, 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 instructional activity, students review definitions and equations associated with molarity, density, atomic mass, molarity, and dilutions. This instructional activity has 18 word problems.
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Physical vs. Chemical Changes
In this chemical reactions learning exercise, students read about the differences between physical and chemical changes in substances. Then students identify situations as either an example of physical or chemical change. Students learn...
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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, high schoolers 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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Plant Parts
For this plant parts worksheet, students read for information and demonstrate comprehension. In this true and false, fill in the blank, short answer, and multiple choice worksheet, students answer ten questions.
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A Matter of Density
For 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 activity, students 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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Chemistry Worksheet-Phase Changes
In this phase change worksheet, students answer twenty questions about changes in energy to a system. They analyze phase diagrams, the determine the effects of changes in temperature on a system, they answer questions about miscibility,...
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Colligative Properties and Chemical Equilibria
For this colligative properties and chemical equilibria worksheet, students answer twenty questions including ranking solutions base on their colligative properties and determining what must happen to a reaction to reach equilibrium.
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Acid and Base Problems
In this acid and base worksheet, students use seven steps to calculate concentrations of ions in acidic and basic solutions. They also determine the type of acid or base.
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Mass and Moles Worksheet
In this mass and moles activity, students solve fifteen problems which include converting between moles, mass, atoms, molecules and formula units.