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Millions of organisms can live in and around a body of water.

This is an activity about lung capacity. Learners will measure their own lung capacity using a homemade spirometer.

In this nutrition and estimation activity (page 12 of PDF), learners estimate serving sizes of different foods and compare their estimates to serving size information provided on nutrition food labels

In this health activity (page 5 of the PDF), learners will explore a unique connection betweeen the bones of the body.

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

In this activity (on pages 18-28), learners explore how the shape of seeds affects how they are dispersed by wind, birds, ocean currents and other means.

In this activity, learners mark their height on a height chart and discover how tall they are in nanometers.

Put math of measurement into lining up — and make waiting in line fun. Choose a size characteristic that learners can physically compare, such as foot length or hair length.

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).

How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?

In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters, centimete

In this activity, learners explore how engineers incorporate biometric technologies into products as well as the challenges of engineers who must weigh privacy, security and other issues when designin

In this health and fitness activity, learners focus on the importance of daily physical activity, specifically walking.

This activity combines learning about nutrition, math of measurement and proportion, and healthy eating. Start by distributing food packages with Nutrition Facts labeled.