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In this activity, learners examine body parts (including skin, scales, and skulls) from fish, mammals and reptiles. Questions are provided to help encourage learner investigations.

In this outdoor archaeology activity, learners use mathematical skills and scientific inquiry to generate and process information from their own excavation site.

In this activity on page 3 of the PDF, learners visualize the relative size and structural differences between microbes that have the potential to cause disease.

In this group activity, learners will mark important developments of life on Earth on a timeline (each foot in length representing 200 million years).

This is an activity (located on page 4 of the PDF under What's Nano? Activity) about size and scale.

This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors.

In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition.

In this activity, learners work in groups to create a time line representing significant moments in their lives.

In this activity, learners will create a diagram of the ocean zones and determine what organisms live in each zone.

In this activity, learners solidify their conceptualization of cells by building a model of a cell in a ziplock bag.

This activity (on page 2 of the PDF under SciGirls Activity: Music and Sound) is a full inquiry investigation into sound frequency.

In this activity, learners examine the culture and history of the tomb site.

In this activity, learners create their own archaeological profiles.

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

In this activity on page 1 of the PDF, learners compare the relative sizes of biological objects (like DNA and bacteria) that can't be seen by the naked eye.

This is an activity (located on page 3 of PDF under Gecko Feet Activity) about modeling a nanoscale phenomenon (gravity-defying gecko feet) with macroscale objects (shoes).

In this activity, learners create a model using metric measuring tapes and atmosphere composition data.

In this quick activity about size and scale (on page 2 of the PDF under What's Nano?

In this activity, learners use two different techniques to estimate how many little things fit into one bigger thing.

In this activity, learners place cards featuring biological structures in order by their relative size from largest to smallest.