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Testing for Life's Molecules
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In this activity, learners conduct tests for proteins, glucose, and starch.

Carbon Dioxide Removal
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In this experiment using sprigs of Elodea, learners will observe a natural process that removes carbon dioxide (CO2) from Earth's atmosphere.

Single-Cell Life
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In this activity, learners create a soil and water model of a single-cell life environment and study living microorganisms.

Easy PEAsy Seed Germination
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In this activity, learners determine the necessary conditions for pea seed germination.

Forensic Science: Hair Sample Investigation
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This activity (on page 2 of the PDF under SciGirls Activity: Forensics) is a full inquiry investigation into how hairs from a crime scene are matched to suspects.

Natural Indicators
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Learners combine different plant solutions -- made from fruits, vegetables, and flowers -- with equal amounts of vinegar (acid), water (neutral), and ammonia (base).

Cell Division
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This activity was designed for blind learners, but all types of learners can use it to investigate how, in a one-celled organism such as a bacterium, the division of cells increases the number of cell

Corals and Chemistry
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In this activity, learners investigate how increased carbon dioxide (CO2) emissions from the burning of fossil fuels is changing the acidity (pH) of the ocean and affecting coral reefs and other marin

Glow Up
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In this activity, learners explore chemiluminescence and fluorescence. Learners examine 3 different solutions in regular light, in the dark with added bleach solution, and under a black light.

Biobarcodes: Antibodies and Nanosensors
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In this activity/demo, learners investigate biobarcodes, a nanomedical technology that allows for massively parallel testing that can assist with disease diagnosis.

Pom Pom Potential
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In this kinesthetic activity, learners move pom-pom "ions" across a membrane to simulate how an action potential is propagated along an axon.

Jumpin' the Gap
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In this simulation of synapses, learners act out communication at the neural level by behaving as pre-synaptic vesicles, neurotransmitters, post-synaptic receptors, secondary messengers and re-uptake

Bark Beetle Infestation Investigation: Estimation and Pheromones
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This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

Wash This Way
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In this activity on page 4 of the PDF, learners investigate the importance of washing their hands.

Target Recognition and Synapse Formation During Development
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In this activity about neuron/target muscle recognition (page 44 of the PDF), learners arranged in two rows facing away from each other use string to simulate neural development.

Fuel for Living Things
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In this activity, learners observe what happens when yeast cells are provided with a source of food (sugar). Red cabbage "juice" will serve as an indicator for the presence of carbon dioxide.

Neural Network Signals
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In this activity, learners create an electrical circuit and investigate how some dissolved substances conduct electricity.

Experimenting with Naked Eggs
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In this activity about osmosis, learners use a naked egg (one with a dissolved eggshell) to learn about selectively permeable membranes.

Visualizing How the Vestibular System Works
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In this activity (page 59 of the PDF), learners spin and observe false eyelashes in jars of water (prepared at least 1 day ahead of time) to investigate the effects of different types of motion on the

Make a "Mummy"
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The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.