Water Manipulation Technique Revealed
Discover the fascinating world of density with a series of engaging activities that are both fun and informative.
Firstly, let's delve into the concept of density. Salt increases water density by adding mass without much volume change. This means that salt water has a higher density than plain water, making it heavier. When two glasses containing water with different salt concentrations are placed side by side, they resist mixing due to density differences causing stratification, keeping denser salty water separate from less dense fresh water.
A simple experiment to illustrate this phenomenon can be conducted using two glasses of the same size, food coloring, salt, and water. Fill one glass with saltwater (by adding salt to water) and the other with plain water. Carefully pour the saltwater into the other glass. Observe as the denser salt water stays at the bottom while less dense plain water sits on top and does not mix. This layered effect maintains the separation until disturbed or mixed by external forces.
For those looking to try something new, why not create a creepy density jar for Halloween? Or perhaps you'd like to make a water balloon sink? Both activities are easy to do and provide an enjoyable way to learn about density. Just remember to perform these activities over a sink or somewhere where getting wet is not a problem.
The principle of density can also be applied to understand why apple bobbing works. By submerging apples in a container of water, the denser apples sink to the bottom while the less dense ones float to the top, making it a fun and interactive way to learn about density.
Emma Vanstone, our resident science enthusiast, has recently updated this article on July 9, 2025, to provide you with the most accurate and up-to-date information on density. If you have any favourite density tricks, we'd love to hear them!
In the spirit of learning, a similar activity involving air pressure was recently performed by Mom to Posh Little Divas. Be sure to check out their blog for more exciting science experiments.
Happy learning, and remember, the world is full of wonders just waiting to be explored!
- Kids can also participate in a demonstration of density by creating a science activity that involves making a water balloon sink, providing an enjoyable way to learn about this concept in health-and-wellness and fitness-and-exercise.
- To further broaden their understanding of density, kids might enjoy a Halloween-themed activity like creating a creepy density jar, combining fun and learning in a unique way.
- A fun and interactive water-based activity like apple bobbing can serve as a demonstration of density, where kids discover that denser apples sink to the bottom and less dense ones float to the top.
- Engage in science more through experimentation by attempting activities related to both health-and-wellness and fitness-and-exercise, like the ones found in articles and demonstrations by experts such as Emma Vanstone and Mom to Posh Little Divas.
