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Learners see that a carrot slice sinks in fresh water and floats in saltwater.

In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water.

In this activity, learners build a paper stellated rhombic dodecahedron, a three-dimensional 12-pointed star.

In this activity, learners calculate the percentage of oxygen in the atmosphere by using steel wool's ability to rust.

In the kitchen, learners can perform their own density investigation.

In this activity, learners explore scale by using building cubes to see how changing the length, width, and height of a three-dimensional object affects its surface area and its volume.

This activity puts a mathematical twist on the familiar “guessing jar.” No guesses allowed, estimates only.

Learners make a counting/estimating jar to exchange with friends or bring home.

Learners act as engineers and design mini submarines that move in the water like real submarines.

Make snack time into measuring time and learn to read Nutrition Facts labels. Try this when you’re using “pourable” foods, such as cereal, yoghurt, or juice.

In this activity, learners examine the culture and history of the tomb site.

In this activity, learners explore Charles' Law in a syringe.

In this activity, learners work in teams to construct human lung models from small plastic beverage bottles and balloons.

Choose a recipe to double (or triple, quadruple, or halve). Show everyone the recipe and engage them in figuring out: How much will we need to increase the recipe to feed everyone?

In this activity, learners explore density and buoyancy as they design and construct rafts.

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

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

Learners create a tool to measure how well they grip a wet object when their fingers are smooth versus wrinkly. Are smooth or wrinkly fingers better at holding on to the object?

In this activity, learners watch a video to learn about a couple who built a home out of shipping containers in Brooklyn, New York.