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In this family or group inquiry activity, learners use their senses to explore a local forest or woodland.

Learners make a counting/estimating jar to exchange with friends or bring home.

Build a house you can fit inside, using cardboard tubes.

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 build scaled-down structures and cantilevers in a series of "building out" challenges with bamboo skewers and tape.

In this activity, learners rotate through several learning and play stations to explore dinosaurs and paleontologists.

In this activity, learners discover that some things only stand up while they are spinning.

In this activity learners create patterns of hair beads.

In this activity, learners will predict the size of a giant scale model of a comb or other rectangular object, then make one. If you tripled the size of a dollar bill, could you sit on it?

In this math lesson, learners explore and investigate measurement using standard and non-standard units.

Choose a recipe to double (or triple, quadruple, or halve). Show everyone the recipe and engage them in figuring out: How much will we need to increase the recipe to feed everyone?

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

This activity is a hit for family events and all ages—some will finish in 45 minutes; others can go on for hours.

In this activity, learners make critters out of recyclables and apply the rules of mathematics to solve genetics problems.

In this activity, learners simulate what happens to a human spine in space by making Sponge Spool Spines (alternating sponge pieces and spools threaded on a pipe cleaner).

In this activity, learners make or use pre-made clay beams to scale and proportion. Specifically, they discover that when you scale up proportionally (i.e.

In this activity, learners take measurements and create charts to learn about the size of dinosaurs and their relative scale to humans.

In this activity, learners explore dinosaur skeletons and anatomy. Learners make observations about a T. rex skeleton diagram and then measure the skeleton length and width.

In this chemistry activity, learners use thin layer chromatography to determine the molecular composition of different markers.

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