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

In this three-day lesson, learners identify two-dimensional shapes used in castle construction, create a castle collage using assorted shapes, and design tapestries using repeated patterns of color, s

In this math activity, learners play a game that helps reinforce learners' understanding of the coordinate system.

In this activity, learners explore the potential of interchangeable standard parts to create a large number of unique creations in different combinations.

Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles.

In this activity, learners prepare four polymer elastomers and then compare their physical properties, such as texture, color, volume, density, and bounce height.

This is a quick game about self-assembly (page 2 of PDF under Self-Assembly Activity). Like the molecules of DNA, learners will self-assemble into a pattern by following a simple set of rules.

In this math activity, learners play a game and try to collect the most cards by guessing if the next number to appear will be odd or even.

In this math activity, learners find patterns in telephone numbers.

In this math activity, learners make toothpick designs by following simple patterns.

In this "Sid the Science Kid" activity from Episode 107: My Shrinking Shoes, learners observe how plants change as they grow.

In this math activity, learners role-play as wait staff at the Kidtropolis Diner. It's the end of the night and it's time for the staff to collect their tips.

In this game, learners strategize to be the first player to make three in a row.

What is the optimal environment for hatching brine shrimp? Using a scaffold, learners design and conduct experiments testing the effect of a single abiotic factor on brine shrimp cyst hatch rate.

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 genetics activity, learners create imaginary creatures known as "Reebops" to explore the relationships between genes and inherited traits.

In this activity, learners use earthworms as "unknown creatures" from the South American jungle to find out how animals use senses.

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

A group of learners simulates the spread of disease by trading slips of paper, one set of which has been treated with a baking soda solution.

In this activity, learners find as many combinations of a hundred as they can using various puzzle pieces from a hundred square grid paper.