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In this activity, learners use their strength to light a light bulb. A chain made from paper clips is placed in series with a battery and flashlight bulb.

In this quick activity, learners observe how salinity and temperature affect the density of water, to better understand the Great Ocean Conveyor.

In this physics demonstration, learners are challenged to insert a straw the furthest into a potato.

In this physics activity (page 12 of the PDF), learners explore potential and kinetic energy by rolling different sized marbles down an inclined plane.

In this chemistry activity, learners explore density by using four solids and 6 liquids to create colorful, layered rows.

In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.

This resource contains several mini-explorations using a slide projector as a light source to investigate light and the properties of images.

In this activity, learners explore how their depth perception would be affected if they only had one eye. Learners work in pairs and attempt to drop a penny in a cup with one eye covered.

In this activity, learners explore how genetic switches function and the role of genetic switches in the process of evolution.

Learners engage in close observation of falling objects. They determine it is the amount of air resistance, not the weight of an object, which determines how quickly an object falls.

In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass.

In this demonstration/activity, learners observe as a regular size marshmallow is blown through a tube made from a manila file folder.

This experiment is designed to illustrate how fluids, including water, have the ability to flow.

In this activity, learners explore the process of condensation.

In this activity, learners write a secret message in "invisible ink" and then use chemistry to view the writing.

In this activity, learners create a "mini sky" in a glass of water in a dark room.

In this introductory activity and demonstration, learners are introduced to the concept that different substances react chemically in characteristic ways.

In this demonstration, cook a cake using the heat produced when the cake batter conducts an electric current.

This activity about density provides instructions for making a miniature "lava lite" with just salt, oil, water, and food coloring.

In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats.