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In this activity on page 2 of the PDF, learners discover how color changes can help scientists distinguish between acids and bases.

In this activity, learners use cardboard bases and track tubes to make a ball run to explore the properties of mass, force, and motion.

This is an activity in which learners create magic wands from a variety of materials making their choices by considering what kind of magic they want to make.

In this activity about light and refraction, learners make a lens and magnifying glass by filling a bowl with water.

In this activity related to magnetism and electricity, learners discover that a magnet falls more slowly through a metallic tube than it does through a nonmetallic tube.

In this activity, learners investigate the speed of chemical reactions with light sticks. Learners discover that reactions can be sped up or slowed down due to temperature changes.

In this activity, learners create a xylophone by filling glasses with different amounts of water and tapping them with a metal spoon.

In this water activity, learners discover ways to move water across the water table.

In this activity, learners capture and observe planaria, which are worms that eat tiny pond critters.

In this optics activity, learners create a ripple tank from household materials to study waves. Learners build the tank and then explore by making various types of waves.

In this optics activity, learners experiment with polarizers (small dark rectangles) to examine light intensity.

In this activity, learners make a paper model of a polymer, then make Silly Putty, an actual polymer.

In this activity (located on page 6 of the PDF), learners explore the ways people access water in their homes.

In this lab exercise, learners explore diffusion, cell membranes and particle size using beets and three alcohols.

Learners set up three different bowls, each with a different mass of oatmeal. Learners monitor the temperature of the oatmeal and find that larger masses take longer to cool.

In this group activity, learners see and hear the speed of sound. A learner designated the "gonger" hits a gong, once every second, as the rest of the group watches and listens from a distance.

In this activity, learners explore the invisible infrared radiation from an electric heater.

In this activity, learners (at least three) work together to explore the effects of atmospheric pressure.

In this optics activity, learners explore color by examining color dots through colored water and the light of a flashlight.

This is an activity about prediction. How far can you hop in 5 seconds? Could you make it to the door? Across the room? Everyone lines up and tries it.