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Subject: Nature of Science

Falling Feather

Prove to yourself that Galileo was right.

Science activity that demonstrates calculating the acceleration of gravity using simple materials
Falling for Gravity

“g,” that’s interesting! Investigating gravity.

Science activity that demonstrates gel electrophoresis
Gel Electrophoresis

Use electricity to separate colored dyes.

Giant Sieve Sorter

Boundaries are the gift that keeps on sifting.

Science activity that demonstrates use of nonstandard measurements and simple ratios for estimating sizes or distances
Handy Measuring Tool

Measure the height of an object indirectly using your hand and a ratio.

Build an inclinometer, a tool that can measure the height of a distant object, no matter how far away it is
Height Sight

Find the height of a tree, paper rocket or North Star.

Science activity that explores growth rates for cultured cells
How Many HeLa?

Dividing cells expand exponentially.

Science activity that explores the relationship between light, area, and distance
Inverse-Square Law

Why the world gets dark so fast outside the circle of the campfire.

Science activity investigating visual perception
Looking a Little Spotty

Test how well your brain can see patterns.

Science activity that demonstrates finding the approximate masses of very small things
Microbalance

Make a balance that weighs very light things.

Science activity that will allow you measure things that are too small to measure with commonly available means
Micrometer Caliper

Measure the thickness of a sheet of paper.

Miniscopio para teléfono celular

Usa tu teléfono celular para explorar el mundo a través de un miniscopio.

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Attribution: Exploratorium Teacher Institute