Science Buddies
Science Buddies: Measuring Sugar Content of a Liquid With a Laser Pointer
Here's a project that shows you how to use a laser pointer and some knowledge of physics to figure out the concentration of sugar dissolved in a liquid.
TeachEngineering
Teach Engineering: How Much Sugar Is in Bubble Gum?
Most of the flavoring in gum is due to the sugar or other sweetener it contains. As gum is chewed, the sugar dissolves and is swallowed. After a piece of gum loses its flavor, it can be left to dry at room temperature and then the...
Bill Nye
Bill Nye: Hole Y Water
This tutorial from Bill Nye uses an experiment with water and sugar to show how matter is mostly empty space.
Science Buddies
Science Buddies: What's the Point of Boiling?
You know that water can exist in three separate phases: solid (ice), liquid (water), and vapor (steam). To change from one phase to another, you simply add (or remove) heat. When water boils, what happens to molecules (for example sugar...
Science Buddies
Science Buddies: Saturated Solutions: Measuring Solubility
Many essential chemical reactions and natural biochemical processes occur in liquid solutions, so understanding the chemical properties of liquid solutions is fundamentally important. This project will challenge you to discover how much...
Other
Science Alive: Pure Substances, Mixtures, and Separations
One way scientists talk about matter or substance-that is, the stuff in the world-is in terms of pure substances and mixtures. Pure substances are substances that contain only one kind of molecule. Water with nothing else in it is a pure...
Texas Instruments
Texas Instruments: A Sweet Drink Adventure 7
Students determine how the temperature of water affects the dissolving time of a sugar cube. They create, interpret and analyze graphs of data, find an equation of the line of best fit, and relate slope to rate of change.