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Exploring Size: Scented Solutions
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This is an activity in which learners will find that they can detect differences in concentration better with their nose (smelling) than with their eyes (seeing).

Size Wheel
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In this fun sticker activity, learners will create a size wheel with images of objects of different size, from macroscopic scale (like an ant) to nanoscale (like DNA).

Coffee to Carbon
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In this activity, learners place cards featuring biological structures in order by their relative size from largest to smallest.

Paper Cutting
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In this activity about scale, learners investigate the world of the very small by cutting a 28 centimeter strip of paper in half as many times as they can.

Separation Anxiety
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In this activity, learners discover the primary physical properties used to separate pure substances from mixtures.

Smelly Balloons
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In this activity, learners sniff out scents hidden in balloons! After investigating, learners discover we sometimes can use another sense (smell) to detect things too small to see.

Exploring Forces: Gravity
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In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.

Gummy Growth
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In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition.

Gravity Fail
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In this activity, learners try pouring water out of a regular cup and a miniature cup. It’s harder than it sounds! Learners discover that different forces dominate at different size scales.

Volume, Mass, and Density Boxes
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This activity was designed for blind learners, but all types of learners can utilize it to investigate volume, mass, and density.

Space Jell-O
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Albert Einstein proved that space bends around anything that has mass. This activity uses Jell-O's ability to bend around objects as a model for space bending around planets and stars.

Exploring Properties: Surface Area
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This hands-on activity demonstrates how a material can act differently when it's nanometer-sized.

Exploring Products: Nano Fabrics
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In this activity, learners explore how the application of nano-sized "whiskers" can protect clothing from stains.

Sand, Plants and Pants
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In this activity, learners explore how the application of nano-sized particles or coatings can change a bigger material’s properties.

Modeling Limits to Cell Size
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This investigation provides learners with a hands-on activity that simulates the changing relationship of surface areas-to-volume for a growing cell.

Sizing Up Temperature
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In this activity, learners explore Charles' Law in a syringe.

Animal House
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The goal of this activity is to design, build and test a house or toy for an animal.

Exploring the Nanoworld with LEGO Bricks: Structure-Property Relationships at the Nanoscale
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In this activity (pages 32-41), learners learn how the atomic and molecular arrangement of matter are related to physical properties.

Gel Electrophoresis of Dyes
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In this experiment related to plant biotechnology, learners discover how to prepare and load an electrophoresis gel.

How Big is Small
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In this classic hands-on activity, learners estimate the length of a molecule by floating a fatty acid (oleic acid) on water.