Matter and Materials: Grade 8 - Fluids

1. demonstrate an understanding of the properties (e.g., viscosity) and the buoyant force of fluids;
2. investigate the buoyant force and other properties (e.g., viscosity) of fluids, and design and construct pneumatic or hydraulic systems that solve a problem in a given situation;
3. describe how knowledge of the properties of fluids can help us to understand and influence organisms in the natural world, and to design and operate technological devices and to evaluate how efficiently devices make use of these properties

Site Name	Online	O.E.	Description
Cartesian Diver		2	Students will examine the buoyant force of fluids.
Root Beer Float		2	Students will examine the density of liquids compared to the density of water.
Deducing Density		2	Students will conduct an activity to compare densities of different liquids.
Hydrodynamics		3	Students will conduct an activity to learn about hydrodynamics - the science of how things move in water.
Surface Tension		2	Students will conduct an activity to show how surface tension helps objects float and the net effect of oil/soap on surface tension.
The Amazing Water Trick		2	Students will have the opportunity to explore and experiment with density of hot and cold water.
Building a Hydrometer		3	Students will understand how a hydrometer works by building a model and conducting experiments.
Celery Stalks at Midnight		2	Students will conduct an activity to explore capillary action in liquids.
Outrageous Ooze		2	Students will explore the viscosity of a colloidal solution.
Buoyant Force in Liquids		1	Students do a "virtual" science experiment and results are displayed.
Non-Compressibility of Water		1	The student will understand that water cannot be compressed and will be able to explain the importance of this fact in his daily life.