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In this activity, learners use their estimation skills to match the unmarked containers to their amounts.

In this activity, learners will build thier own balance scale. Learners will explore weight and comparison through this activity.

In this meteorological activity, learners get to build their very own anemometer (instrument for measuring wind speed) using a paper cup.

Yes, you can weigh your car by figuring out your wheel's tire pressure combined with the "tire's footprint." You'll need someone with a car, driver's license, and safety in mind.

In this math activity, learners build Peppy the dog the best trail and park for running around.

Get all wrapped up in a lesson about skin!

In this hands-on activity, learners make New Year's Eve party hats out of wrapping paper. Learners use symmetry and measurement to cut out shapes they need to assemble the hats.

In this math activity related to volume, learners use problem solving skills to calculate and build a model house for Minus the dog.

In this math lesson, learners estimate distances between landmarks and use a map and scales to determine the actual distances.

In this math activity, learners estimate how many pennies are in a jar by predicting and counting handfuls of pennies.

In this design challenge activity, learners build a machine out of cardboard that runs smoothly and dependably. Learners must be precise to make sure their component works properly.

In this activity learners observe mold growth on different types of bread by measuring and recording the growth rate.

In this activity, learners explore the concepts of structural engineering and how to measure the critical load, or the maximum weight a structure can bear.

In this activity, learners calculate the percentage of oxygen in the atmosphere by using steel wool's ability to rust.

In this math lesson, learners use hinged mirrors to discover that regular polygons are composed of triangles tessellating around a center point.

In this activity, learners interpret three trackways and use measurements and a formula to infer the relative speed of dinosaurs.

In this activity, learners make different shapes that hold exactly one mole of gas (air).

In this activity, learners build a stuffed-animal zip line. Learners hold a cord against a wall, hook a cute stuffed animal onto it, let the animal slide down, and records its travel time.

In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages.

In this activity, learners explore conservation of energy by experimenting with a solar cell light device.