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Luminescence
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In this two-part activity about luminescence, learners explore the chemistry that happens inside glow sticks and other light producing reactions.

Floodplain Modeling
In this design-based lesson, learners study flood dynamics as they modify a riverbed with blockages or levees to simulate real-world scenarios.

Nano Waterproofing
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This lesson focuses on how nanotechnology has impacted the design and engineering of many everyday items from paint to fabrics.

Classroom Dinosaur Dig
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In this activity, learners participate in a simulated dig to discover fossilized dinosaur bones. Learners take notes, make a map and propose theories about dinosaurs.

Conductivity: Salty Water
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Water, whether fresh or salty, serves as one of the best electrical conductors on the planet. Does salt effect its conductivity?

Earth Atmosphere Composition
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In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages.

Gene Switches
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In this activity, learners explore how genetic switches function and the role of genetic switches in the process of evolution.

Not Just A Bag Of Beans
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In this activity, learners count and measure kidney beans to explore natural selection and variation. Learners measure the length of 50-100 beans.

Cool Tool
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In this activity (on pages 10-17), learners discover how scientists study biodiversity and the health of the environment based on inspection of small areas—a process known as sampling.

Gaming in the Outdoors
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In this set of outdoor games, learners increase their awareness of the outdoor environment by going on a scavenger hunt and an out-of-place hunt.

Hockey Stick Power!
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This activity (on page 2 of the PDF under SciGirls Activity: Hockey) is a full inquiry investigation into how a hockey stick’s flex affects shooting power and accuracy.

Trash Talkin'
In this activity, learners collect, categorize, weigh and analyze classroom trash and discuss ways that engineers have helped to reduce solid waste.

Geometry Construction: Polyhedral Playthings
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In this activity, learners create 3D geometric shapes using straws and pipe cleaners.

Insulators and Conductors
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In this activity, learners explore the concept of conducting or insulating electricity.

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.

Ionic Bonding Puzzle Lab
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In this activity, learners create models of ionic compounds and observe the chemical formula of binary molecules they have created.

Digger
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In this activity, learners build their own construction cranes using tongue depressors and pushpins.

The Beaks of the Finches
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In this simulation, learners become birds different beak types. Learners use various tools to represent beaks to pick up seeds and place them in a petri dish.

Size, Scale and Models
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In this activity, learners take measurements and create charts to learn about the size of dinosaurs and their relative scale to humans.

House Warming
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In this physical sciences activity, learners explore how passive solar design increases energy efficiency.