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This game for one to four players uses a deck of cards to develop mental addition skills.

In this activity (4th activity on the page), learners test to see if saliva is necessary for food to have taste.

In this activity (2nd activity on the page), learners explore how the nose is responsible for part of the flavor we taste in food.

In this activity, learners follow a recipe to create play dough scented with fruit-flavored drink mix.

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

In this wintertime outdoor activity, learners role play wolves tracking their prey by following scented trails.

In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.

In this sunny day, outdoor activity, learners observe changes in shadows over time. The activity also helps to develop a sense of the Earth's motion.

In this activity (1st activity on the page), learners explore their sense of taste and the structure of the tongue by taste-testing various foods.

In this activity on page 6 of the PDF (Chemistry—It’s Elemental), learners explore some of the properties of copper using a few common household ingredients.

Historically, sea floor mapping (bathymetry) was done by soundings.

In this activity (on pages 16-21), learners get a sense of geological time by understanding how big a million is.

This is an activity (located on page 4 of the PDF under What's Nano? Activity) about size and scale.

This quick demonstration (on page 11 of PDF) allows learners to understand why scientists think water ice could remain frozen in always-dark craters at the poles of the Moon.