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Straws and pipe cleaners are terrific materials for building models of pyramids and cubes.

In this quick activity (page 2 of PDF under GPS: Lava Flow Activity), learners will model how large depressions near the top of a volcano are formed by using an inflating and deflating balloon submerg

In this activity, learners make a scale model of an atom to see how big or how small an atom is compared to its nucleus. Learners will realize that most of matter is just empty space!

In this activity, learners design, build and test a model suspension bridge for sturdiness and strength.

In this activity, learners design and build a NASA rover using raw pasta and candy with a limited imaginary budget.

In this physics activity (page 2 of the PDF), learners will construct their own walkalong glider. They will explore how air, though invisible, surrounds and affects other objects.

This fun and simple hands-on astronomy activity lets learners explore model planets (that they or an educator will create), using methods NASA scientists use to explore our Solar System.

In this activity about camouflage, learners create a model that shows how a flounder is able to blend into a variety of environments.

In this activity, learners explore the relative sizes and distances of objects in the solar system.

In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.

In this activity, learners build a hot air balloon using just a few sheets of tissue paper and a hair dryer.

In this project, students explore how levers work, by making a puppet with moving limbs.

In this activity, learners cut out and fold their own collapsible origami starshade, an invention that shields a telescope's camera lens from the light of a distant star so that NASA scientists can ex

Learners use simple materials to construct a model the Big Dipper. Learners hang the model from a doorway or ceiling and look up at it to see the constellation as seen from Earth.

In this activity, learners use colored candy to represent subatomic particles and make a model of an atom (Bohr model).

In this activity (page 4), learners work in groups to plan and build large structures using recyclable materials they have brought from home.

In this engineering activity, young learners investigate multi-level buildings.

Learners make a mobile model of a carbon atom using clay, wire, and pipe cleaners.