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Water Unit
In this water worksheet, students review the properties of water including the density, boiling point, and evaporation. Students define mixture, solute, and solvent. This worksheet has 22 short answer questions.
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It's a Mixed Up World!
Middle schoolers examine the importance of applying the scientific knowledge of elements, mixtures, and compounds to manufacture consumer goods and conduct civil operations, such as water purification. They also practice categorizing...
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Mixtures
In this mixtures pre-lab worksheet, learners compare and contrast suspensions and colloids and solutions and colloids. Students describe the Tyndall effect. This worksheet has 10 short answer questions.
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SEPARATION OF A STARCH-GLUCOSE MIXTURE USING GEL FILTRATION
Students make a starch-glucose solution and pour it through gel in order to separate the starch from the glucose. They examine how starch is a larger molecule than glucose and test for the presence of these substances using other...
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Science Lesson #2
Fourth graders explore and experiment with objects that float to see if they float differently in salt water or fresh water. After the experiment, they write a paragraph in their science journal explaining how fresh water and ocean water...
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Practice Sheet: Colligative Properties
In this colligative properties activity, students solve eight problems. They calculate molarity, molality and grams of substances in addition to using colligative properties to calculate solutions.
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Water Resource Engineering
Learners examine solubility and the significance of water. In this aqueous solution instructional activity students complete a lab activity on soil profiles.
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Chromatography
High schoolers use chromatography to separate substances in Kool-Aid, Crayola markers and leaves. In this chromatography lesson plan, students make chromatograms to separate substances in a mixture through absorption. High schoolers find...
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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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Ice Energy
Students study the concept of ice energy. In this ice energy lesson, students observe what happens when salt is sprinkled on a piece of ice before following a recipe to make two types of ice cream. They note the difference in the two...
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Crystallization
Eighth graders analyze physical change in mass. In this chemistry lesson, 8th graders describe, measure and calculate the amount of physical change occurring in mass before and after the change. Students should be familiar with elements,...
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Can Acids and Bases Remedy the Body?
Students try to cure an upset stomach. In this acids and bases in the body instructional activity, students create a upset stomach with a vinegar and water solution, then use antacids and home remedies to attempt to restore pH balance...
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Acids and Bases
In this acid and base activity, students calculate the pH of solutions, sketch a titration curve, write equations used to determine the pH of solutions and determine the location on a titration curve of a given molar solution.
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Cell Size and Division or How Big Would You Want To Be if You Were a Cell?
Students investigate why cells divide. In this cell size lesson plan, students observe how far a solution travels into 3 different size model cells of agar. They answer questions about the most effect movement of "nutrients" into the...
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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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Sampling Carbon Dioxide
Students perform an experiment to determine which source of gas (their breath, exhaust from a car, or the air in the classroom) has a greater concentration of carbon dioxide. Students compare the colors of BTB solutions after...
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The Effect of Concentration Changes on Equilibrium
In this concentration changes and equilibrium worksheet, students experiment with iron (III) ions and thiocyanate ions to observe the effects of concentration on the equilibrium of solutions. Students make observations of their mixtures,...
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Oil Floats, Right?
Young scholars examine the properties in oil in water. In this mixture lesson, students read about the Lophelia II 2010: Cold Seeps and Deep Reef Expedition and look at images of deep sea ecosystems. They experiment or participate in...
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What A Gas!
Students study various aspects of air. In this science lesson plan, students discover that air occupies space, understand the visual effects of air, and explain how air exerts force.
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Finding the Percent of Iron in Lawnsand
In this percent of iron in lawnsand worksheet, students perform a titration of lawnsand using potassium manganate (VII) solution and find the number of moles of iron in the sample. Students use the number of moles to find the mass of...
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Classifying Chemicals
In this acids and bases worksheet, learners identify the strengths of acids and bases and indicate the concentration of hydronium and hydroxide ions. They determine if given chemical formulas are acids or bases, they find the molarity...
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Make Slime
Students make slime. In this chemical reaction lesson, student use Borax to make a gel like solution. Students add all ingredients listed, add food coloring, and mix well. Students see first hand how chemicals react together and create...
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Thermometric Titration
In this thermometric titration worksheet, students titrate hydrochloric acid with sodium hydroxide to determine the concentration of hydrochloric acid. They measure the change in temperature of the solution, plot their data and use the...
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Equilibrium and Acid/Base Equilibrium
In this acid/base and equilibrium learning exercise, students solve seven problems including calculating equilibrium concentrations of all species in a reaction, calculating the pH of solutions, determining the direction of a reaction at...