Virginia Department of Education
The Ratio of Surface Area to Volume
Demonstrate the ratio of surface area to volume in your high school class by using phenolphthalein, gelatin, and an onion. Intrigue the class by leading a discussion on osmosis and diffusion, then making "scientific jello." Participants...
Alabama Learning Exchange
How Big Can a Bee Be?
Mathematicians analyze the relationships between surface area and volume. They conduct Internet research, conduct various experiments, record the data in a spreadsheet, and graph the results and compare the rate of increase of surface...
National Nanotechnology Infrastructure Network
Learning About Surface Area and Volume
Plan a dinner party. Using a book by Marilyn Burns as a context, pupils learn about the relationships between area and perimeter and surface area and volume. The hands-on activities have learners rearrange tables and cut up meatballs to...
Curated OER
Surface Area to Volume Ratio
Students examine the surface area to volume ratio and how they relate. In this surface area lesson students complete several activities.
Discovery Education
Weathering Cubes
Weathering is not necessarily a result of the weather. Scholars conduct an experiment to explore the effect of surface area and volume on the weathering process. They create their own sugar cube rocks using the same number of cubes—but...
Nuffield Foundation
Effect of Size on Uptake by Diffusion
Cell size is limited by the surface area to volume ratio, but why is this true? Scholars measure the surface area and volume of cubes before placing them into liquid. After a set amount of time, they measure the uptake by diffusion for...
Curated OER
Surface to Volume Ratios
High schoolers measure the rate of diffusion and to calculate the surface area to volume ratios of varying cell sizes. The lesson is very clearly organized with a useful student worksheet provided. They perform a lab experiment which is...
Santa Monica College
Introducing Measurements in the Laboratory
We use basic units of measurement to break down things and communicate clearly. The first lesson in an 11-part series teaches the proper way to measure various items. It starts simply with measuring the dimensions and areas of geometric...
Curated OER
Chemical Reaction Rates
Students observe demonstrations to show factors that affect rates of chemical reactions. In this rates of chemical reactions instructional activity, students investigate how catalysts, reactant concentrations, temperature and surface...
Curated OER
Attack of the Raging River
Students explore mass and volume. In this mass and volume lesson, students pretend to be on a hike and have lost their way. Students must cross a river get back on track. Students must use mass, volume, surface area, density, property...
Curated OER
Sizing Cells
High schoolers examine how living cells reproduce to make new cells. In this cell reproduction lesson students complete a lab activity and answer questions.
Curated OER
Cell Reproduction
In this cell reproduction worksheet, students will discover that when a cube doubles in size, the surface area grows by four times and the volume grows by eight times. Students will use this information to understand the limits to cell...
Teach Engineering
Surface Tension Basics
Back to the basics (of surface tension). The first installment of a nine-part series teaches young scholars about the basics of surface tension and how it relates to water droplets. They also learn how this concept allows for the...
Curated OER
SA/V Ratio and Rate of Diffusion
Students calculate the SA/V ratio and volume of phenophthalien agar that are cut into different shapes. They then let ammonia diffuse into the various pieces of agar and determine the effect that SA/V had on the rate of diffusion.
Beyond Benign
Water Bottle Unit
How much plastic do manufacturers use to create water bottles each year? The class explores the number of water bottles used throughout the years to determine how many consumers will use in the future. Class members compare different...
Curated OER
How Does Cell Size And Shape Affect Transport of Materials
Tenth graders explore concepts of surface area, volume, and ratios, create spreadsheets to aid organization of data collected and provide graphing capabilities, and use NIH Imaging to enable calculations of microscopic organisms.
Cornell University
Scaling Down: Effects of Size on Behavior
Two activities explore the concept of size, especially small sizes down to the nano. Scholars practice determining volume, mass, and density and calculate exponential increases and decreases. They then predict and test the effect of size...
Curated OER
Estimation Task
Upper graders practice their estimation skills by observing different objects then making their best guess without using measuring instruments. Students are asked to estimate mass, length, volume, and area.
Curated OER
Surface Tension and 3D Soap Films
Students are introduced to the concept of surface tension, its dependence on material composition, and how it can produce uniquely shaped surfaces.
Teach Engineering
Penny Perfect Properties (Solid-Liquid Interations)
I can get more water to stay on a penny than you can! Collaborative pairs determine the volume of liquids that can be contained on the surface of copper pennies and plastic coins. The pairs analyze their results using graphs and go on to...
Curated OER
Lakes of Methane on Titan
In this methane lakes worksheet, students read about the false-color synthetic radar map taken by the Cassini spacecraft indicating methane lakes on Titan. Students solve 4 problems about the surface area of the lakes from the image, and...
Pingry School
Kinetics of the Acid Decomposition of Thiosulfate
Several factors affect the rate of a chemical reaction including temperature, surface area, and concentration. Using an experimental approach, learners explore the effect concentration has on this rate while maintaining consistency with...
Curated OER
Cylinder: Student Worksheet
For this cylinder worksheet, learners compare three different cylinders to experiment which one has the greatest volume. Students interact with rectangles as they experiment with the cylinders.
Curated OER
Does Size Matter?
Young scholars explore the surface area to volume ratio in cellular respiration. While participating in an interactive lab experiment, they examine proportional surface area and discuss nanotechnology. Students observe the...
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