Curated OER
Solutions
In this solutions instructional activity, students calculate molality and mole fraction. Students define colligative property and determine what affects the solubility of gas in solvents. This instructional activity has 2 short answer...
Virginia Department of Education
Mystery Iron Ions
Young chemists perform an experiment to determine if a compound is iron (II) chloride or iron (III) chloride. Then they determine the formula, balance the equation, and answer analysis questions.
Curated OER
Lab: Percent of Composition of KClO3
Students find the percent of oxygen in potassium chlorate. In this percent composition lesson plan, students heat a solution of potassium chlorate using a catalyst, manganese dioxide, to decompose the potassium chlorate and release...
Virginia Department of Education
Macromolecules
Finally, a chance for the class to play with their food! Allow pupils to simulate stomach acid with common foods, and introduce specific macromolecules into the mixture to explore characteristics of carbohydrates, lipids, and proteins....
Cornell University
Nano Interactions
Tiny particles can provide big learning opportunities! Middle school scientists explore the world of nanoparticles through reading, discussion, and experiment. Collaborative groups first apply nanotechnology to determine water hardness....
Curated OER
How Can Mixtures Be Separated?
In this mixtures worksheet, students brainstorm the problems and possible solutions of how to separate mixtures. This worksheet is a graphic organizer.
Curated OER
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.
Curated OER
What is in the Water?
For this mixtures worksheet, high schoolers read about mixture and what determines if a solute dissolves in a solvent. They answer three questions about solutions and determine from a list of compounds which are soluble in water.
Curated OER
Rainbow Lab
In this mixtures worksheet, students experiment with different amounts of solutes and solvents to make solutions. They observe color changes and look for chemical and physical changes in the test tubes. Students answer 5 questions and...
Curated OER
Fatty Acids For Soap Making
High schoolers titrate a sample of fatty acids with standardized sodium hydroxide solution. From the amount of base needed for neutralization and the mass of sample used for titration, the apparent average molar mass of the sample is...
Curated OER
WS 8.4 Percentage Problems
In this percentage instructional activity, students calculate percentages given various types of problems. They calculate percent of compounds in a solution, they calculate mass of compounds given percentages of solutions, and they...
Curated OER
Water Quality and Environmental Pollution
Learners use litmus paper to begin to discover the qualities of acids and bases. They learn about pH by testing clear liquids for acidity with purple cabbage juice as an indicator. The video Streamkeeper, with Bill Nye, and other video...
Pingry School
The Gelation of Guar Gum with Borax
Some of kids' favorite toys are the products of science experiments. Scholars follow precise measurements to mix and create their own slime and Play-Doh. They observe the changing textures and the chemical reactions throughout the...
Sunlight Cal-Tech
Chromatography of Plant Pigments
Through a hands-on activity, an acetone-spinach solution is pre-made and learners use this solution to separate the pigments found in spinach using chromatography. The comprehensive resource includes an analysis and conclusion questions.
Science-Class.net
Rock Candy Crystals
Candy is one of my favorite words, and it's an even better word when it relates to science. Yes, candy science can happen when you grow rock candy crystals with your class. The entire process for growing these edible wonders of nature is...
Curated OER
Vocab Science Chapter 1
In this word search worksheet, students locate 20 words related to science. The word list includes volume, mixture, and solute.
Curated OER
Suspensions and solutions
Students create mixtures of baking soda, baking powder, flour, and more to predict which are solutions and which are suspensions. Students follow 4 directions and answer 3 questions.
Curated OER
Solutions
In this solutions worksheet, students determine the pH or molar solubility of different solutions. Students state is the mixture given forms a buffer. This worksheet has 20 problems to solve.
Curated OER
Ziplock Chemistry
Students investigate various chemical reactions when creating mixtures in ziplock baggies. In this chemistry lesson, students will recognize various chemical reactions and cite evidence. Safety and assessment strategies are included in...
Curated OER
Classification of Matter
In this classification of matter worksheet, students answer 5 questions about the composition of matter, solutions, colloids and suspensions, and the properties and changes of matter.
Curated OER
Shake It Up
Learners explore the three types of mixtures through the use of interactive video. They experiment making mixtures using a variety of ingredients, while observing, comparing and contrasting, and identifying the types of mixtures.
Curated OER
Making Mayonnaise - An Edible Emulsion
Young scholars find a way to mix oil and water. In this emulsion lesson, students attempt to mix oil and water, then add egg yolk to the mixture to serve as an emulsifier and observe the results.
Curated OER
Sensational Slime
Students mix solutions of polyvinyl alcohol and borax. They predict what happen and record their observations. They prepare a T-chart comparing Jell-o to their mixture.
Teach Engineering
Chromatography Lab
Groups use alcohol and chromatography paper to separate the color components of black ink. The purpose of the activity is to allow the class to become aware that mixtures exist in hidden places.