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In this activity (page 105 of the PDF), learners measure heart rate and blood pressure and learn how to obtain consistent measurements during repeated tests.

In this movement and measurement activity, learners jump as far as they can three times, and compare their longest jump to the longest jump of their friends, classmates and/or family members.

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

This activity is designed to let learners measure their reaction time or response time to something they see.

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 international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity, learners take their own pulse and explore how heart rate is affected by various activities.

In this activity (26th on the page), learners construct an easy-to-build device and test motor learning.

In this activity (9th activity on the page), learners work in pairs to see how their perception of touch differs from reality.

This activity was designed for blind learners, but all types of learners can use it to learn to differentiate between qualitative and quantitative observations and to practice data collection.

In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.