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Learners measure a bottle full of air, and then use a vacuum pump to remove the air. When they re-weigh the bottle, learners find the mass is about 0.8g less.

This game plays a dozen different sounds, altered to simulate what they would sound like if you had hearing loss.

In this math activity, learners practice comparing fractions.

In this activity, learners will experiment with salt and ice in order to turn a bag of ingredients into ice cream.

This activity is an investigation of static electricity. What happens when you get "static cling?" Basically, you pile up electrons on one thing, which attracts the protons in something else.

In this exercise (Activity #2 on page), learners test their distance vision to evaluate their overall eyesight.

This activity models the way Landsat satellites use a thermal infrared sensor to measure land surface temperatures.

This is an activity about center of gravity. Learners will balance a fork on a glass by finding its center of gravity.

“Exploring Earth: Bear’s Shadow” is a hands-on activity designed primarily for young visitors and their families. Participants move a flashlight around an object to make and experiment with shadows.

In "Chemistry Makes Scents," participants use their noses to distinguish between chemicals with very similar structures.

In this activity, learners will create a model rocket out of an inflated balloon attached to a straw on a taught string.

This is an online game about stopping distance. Learners choose one of three vehicles and one of three speeds.

Learners use filter paper and water to analyze six different markers. They mark the paper with ink, and dip the paper in water. The water travels up the paper and dissolved ink travels with it.

Learners combine counting, multiples, and number patterns with jumping up and down. To start, pick a counting number.

This activity combines learning about nutrition, math of measurement and proportion, and healthy eating. Start by distributing food packages with Nutrition Facts labeled.

In this hands-on activity, learners explore static electricity through the use of common household products. They also explore the connection between static electricity and cold weather.

In this math activity, learners make and explore patterns using the letters in their names, a grid, and some colors.

En esta actividad, los aprendices exploran la simetría haciendo papel picado, una decoración común en México para las celebraciones.

How far can you see out of the corner of your eye? Grab a partner and find out from the Exploratorium Science Snack.

Learners add drops of alginate solution to a solution of calcium chloride. The alginate does not mix with the calcium chloride, but forms soft gel beads.