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Lesson Plan
American Chemical Society

Changing the Density of an Object - Adding Material

For Teachers 3rd - 8th
In this sixth of seven activities revolving around the concept of density, physical science fans figure out if anything can be done to change the density of an object. Demonstrate by placing a can of regular and a can of diet soda into a...
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Lesson Plan
American Chemical Society

Changing the Density of a Liquid - Heating and Cooling

For Teachers 3rd - 8th
During a unit on density, pupils ponder whether or not temperature affects this property. By carefully inserting blue cold water and yellow hot water into a room-temperature sample, they will see the answer. Make sure to have done the...
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Lesson Plan
American Chemical Society

Changing the Density of a Liquid - Adding Salt

For Teachers 3rd - 8th
Fourth in a set of several little lessons on density, this one compares the density of fresh and salt water. First by demonstration, and then by a hands-on activity, learners find that adding salt increases the density, as is evidenced...
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Lesson Plan
American Chemical Society

Comparing the Density of Different Liquids

For Teachers 3rd - 8th
Learners will like making a liquid layer cake to investigate the relative densities of various liquids: water, oil, and corn syrup. They will also introduce a few solid materials to find out how their densities compare. Standing alone,...
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Lesson Plan
American Chemical Society

Defining Density

For Teachers 3rd - 8th
Three simple activities kick off a unit investigation of density. Your physical scientists make observations on the volume and mass of wood, water, and rocks, and make comparisons. Though this is written for grades three through eight,...
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Lesson Plan
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Baylor College

Moving Air

For Teachers 3rd - 6th
In lab groups, young scientists place aluminum cans with a bubble-solution cap into different temperatures of water to see what size of bubble dome forms. As part of an atmosphere unit in preparation for learning about convection...
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Interactive3:53
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Scholastic

Study Jams! Properties of Matter

For Students 4th - 8th Standards
Does matter really matter? Properties of matter are discussed by Sam and RJ: mass, volume, and density. They differentiate between mass and weight. They explain how to measure these properties. Make sure to teach your class about other...
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Lesson Plan
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Curated OER

Sorting Plastics For Recycling

For Teachers 9th - 12th
First, young chemists practice polymer identification by density and flame tests. With the data collected, they propose a method of separating polyethylene from other plastics and determine what property makes it desirable for recycling....
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Lesson Plan
Curated OER

The Floating Egg Problem

For Teachers 9th - 12th
This is the grown-up version of the classic "float an egg in salt water" experience, plus an experiment in soap making. High schoolers explore density, but more importantly, practice accuracy, precision, and the use of significant...
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Assessment
Curated OER

2000 U.S. National Chemistry Olympiad Local Section Exam

For Students 9th - 12th
This 60-question comprehensive exam was designed to determine who would go on to compete in the 2000 US National Chemistry Olympiad. Hopefuls answer multiple choice questions regarding all chemistry topics taught in the first year...
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Lesson Plan
Curated OER

Density of Rocks

For Teachers 9th - 12th
Given a variety of rocks, junior geologists calculate densities and correlate them to Earth's layers. As a simulation of continental crust, they experiment with how materials of differing density float in water. Finally, they compare the...
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Lesson Plan
Curated OER

Matter and Energy

For Teachers 9th - 12th
Does the change in energy of matter lead to a change in mass? Upcoming chemists compare the mass of equal-volume, but different-temperature liquids and materials both before and after a chemical reaction has occurred. In another...
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Lesson Plan
Curated OER

Phase Changes of Water

For Teachers 6th - 12th
A micro-unit on the phase changes of water includes three laboratory activities. Junior scientists compare the densities of ice and water, and then they do the same for cold and warm water. They examine freezing and boiling temperatures....
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Lesson Plan
Curated OER

The Mathematics of Convection: Nature's Model for Energy Production

For Teachers 9th - 12th
High schoolers conduct a series of experiments to investigate density, buoyancy and climate. In this math instructional activity, pupils design and build a hot air balloon to demonstrate convection. They research and write a paper about...
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Lesson Plan
Curated OER

How Dense is Salt Water?

For Teachers 6th - 8th Standards
Young schoolers explore the concept of linear regression. They determine the mass and density of salt water. Pupils add salt to water and record the density as salinity increases, and perform a linear regression on the data to model the...
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Lesson Plan
Curated OER

Regular Coke vs. Diet Coke: Which is Denser?

For Teachers 7th - 12th
Learners define the terms "mass," "volume," and "density." The relationship between these three terms is established. They observe the differences between Regular and Diet Coke. They develop an hypotheses about why a can of Regular Coke...
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Lesson Plan
Curated OER

Mystery Liquids: Linear Function

For Teachers 9th - 12th
High schoolers determine the linear equations of the density of water and oil by collecting data on the mass of various volumes of each liquid. They construct scatter plots from the data and use these to write the linear equations for...
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Assessment
Curated OER

2001 U.S. National Chemistry Olympiad Part I

For Students 9th - Higher Ed
Sixty multiple-choice questions test on a variety of first year chemistry subjects. In order to succeed, exam takers must be competent with properties of elements, stoichiometry problems, gas laws, bond dissociation, and types of...
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Assessment
Curated OER

2001 U.S. National Chemistry Olympiad Part III

For Students 9th - 12th
Here is a comprehensive method for assessing chemistry learners' knowledge; have them approach two laboratory problems, plan their methods of solving each, and then actually carry out the experiments to find the answers. Both the...
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PPT
Curated OER

Properties of Matter

For Teachers 7th - 9th
This PowerPoint is a gem! Seventy-eight slides present an entire introduction to matter in bullet-point fashion. Viewers learn about everything from mass and inertia to phase changes and gas laws! The only glitch is that the links to...
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Lesson Plan
Curated OER

The Weather Classroom - Atmosphere

For Teachers 5th - 8th
Meteorology learners explore the weight of air, layers of the atmosphere, and air pressure action through a series of discussions, demonstrations, and hands-on group activities. Enough discussion prompts, background information, student...
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Lesson Plan
Curated OER

Bubble and Boyle

For Teachers 6th - 8th
Even middle schoolers still enjoy experimenting with bubbles! They execute a series of experiments enabling them to distinguish between convex and concave surfaces, explore the properties of buoyancy, surface tension, and density,...
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Lesson Plan
Curated OER

Determining the Density of a Liquid

For Teachers 8th - 10th
Students find the density of diet soda and regular soda. In this density lesson plan, students measure the mass of a graduated cylinder with 10 different volumes of each soda. They find the mass of the liquid alone and use the volume to...
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Lesson Plan
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Teach Engineering

What Floats Your Boat?

For Teachers 7th - 9th Standards
Clay's as good a material as any to build a boat, right? An introductory lesson sets the stage for two activities associated with buoyancy. The first involves building boats out of clay, while the second uses these boats to measure the...