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In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

In this math activity, learners pretend there is a special store that lets you pay for toys by their weight in pennies.

In this math lesson, learners explore and investigate measurement using standard and non-standard units.

In this activity, learners of all ages can become food scientists by experimenting with flour and water to make basic pasta.

How do you measure a bubble when it's floating? You can't really, but in this activity, learners can measure the diameter of the ring of suds a bubble leaves on a flat surface.

This is an activity about turbidity, or the amount of sediment suspended in water.

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).