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Learners measure irregularly shaped bones using a variety of measurement methods and tools. Then, they measure again using standard conventions and metric tape measures.

In this activity, learners construct hand-held altitude trackers. The device is a sighting tube with a marked water level that permits measurement of the inclination of the tube.

In this activity, learners build their own magnetometer using an empty soda bottle, magnets, laser pointer, and household objects.

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

In this meteorology activity, learners construct simple devices to measure the direction and speed of wind.

In this activity, learners discuss the different salinities of oceans, rivers and estuaries.

In this activity, learners are introduced to challenges of maintaining temperatures while living in space.