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Walk On Water Bugs
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In this activity (on pages 29-35), learners examine water pollution and filtration.
Stroboscope
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In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary.
Signs of Change: Studying Tree Rings
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In this very hands-on lesson, learners will investigate dendrochronology (the study of tree rings to answer ecological questions about the recent past) and come up with conclusions as to what possible
Home Mycology Lab
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Agriculturalists have long considered mushroom growing a challenge, largely because you need a piece of benchtop equipment known as a laminar flow hood.
Multiple Reflections
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In this activity, learners explore how mirrors reflect light and change the way we see things.
Investigating Convection
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This experiment is designed to illustrate how fluids, including water, have the ability to flow.
Sink or Float?
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In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.
Chromosome Models: Karyotyping
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This activity was designed for blind learners, but all types of learners can have a tactile opportunity to construct a karyotype, an organized model of an organism’s chromosomes, conveying the chromos
Underwater Hide and Seek
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In this activity, learners experience firsthand how marine animals' adaptive coloration camouflages them from prey.
The Water Cycle
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Did you know that the water we use today is the same water found on Earth millions of years ago? The Earth constantly uses and recycles water in a process called the water cycle.
Sliding and Stuttering
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Learners use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor.
Breathing Blue
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In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.
Onion DNA Extraction
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This laboratory exercise is designed to show learners how DNA can easily be extracted from onion cells using simple materials.
Charge and Carry
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In this activity about electricity, learners produce a spark that they can feel, see, and hear. Learners rub a Styrofoam plate with wool to give it an electric charge.
Chemical Identification
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In this activity, learners discover how a cabbage juice indicator helps identify acids and bases, and how iodine indicates the presence of starch.
Disappearing Colors
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In this challenge, learners figure out how to make a juice stain disappear.
Moisture Makers
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In this outdoor activity, learners compare the moisture released from different kinds of leaves and from different parts of the same leaf, by observing the color change of cobalt chloride paper.
Mars from Above: Carving Channels
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In this activity, learners create channel features with flowing water, comparing their observations to real images of Mars and Earth taken by satellites/orbiters.
Bonseki Salt Art
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In this activity learners will be creating art using a traditional Japanese art style.
Space Stations: Measure Up!
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In this activity, learners work in pairs to measure each other's ankles with lengths of string.