Planning Index: Mix & Flow of Matter | Print |

Grade 8 Science Unit Plan
Unit A - Mix and Flow of Matter
(Science and Technology Emphasis)

Grade 8 Unit Overview (Alberta)
The materials that we use, including natural and manufactured ones, often take the form of fluids. Fluids are composed primarily of liquids and gases, but may also include solids in a variety of forms. In investigating fluids, students discover that many common household materials are aqueous solutions or suspensions, in which the main component is water, and learn that such diverse substances as air and oil are fluids. Students learn that the properties of individual fluids are important to their use, including such properties as density, buoyancy and viscosity of the fluid and its response to changes in temperature and pressure. The particle model of matter is introduced to help students make a conceptual link between the nature of matter and the specific behaviour of fluids. 

Concepts Covered and Developed through Instruction

  • WHMIS symbols and nomenclature
  • particle model of matter
  • pure substances, mixtures and solutions
  • properties of fluids
  • solute and solvent
  • mass, volume, density
  • concentration
  • viscosity and flow rate
  • solubility and saturation points
  • buoyancy

What do the students already know?

 What do students think a fluid is?
Can they explain why fluids behave the way they do?
Can they describe what fluid technology is?

What must they Learn?

Particle Theory of Matter, as it relates to,
fluid properties and technologies


Specific Learner Outcomes

Instructional Focus

Focus 1

Description of Fluids

Investigation and description of fluids used in technological devices and everyday materials


- examples of fluids
- transporting materials
- properties of fluids

 Describe common everyday examples of fluids
WHMIS Safety Unit
Demonsrtate fluid technologies at work
Research and Viewing of processing technologies

Focus 2

Fluid Composition and Behavior

Investigation and description of the composition of fluids and the behavioral interpretation of materials in solution


- classifying substances
- solubility/concentration
- solubility factors
- particle model

Classification of matter chart
Lab activities
Graphing / Excel
Particle Model of Matter 

Focus 3

Fluid Properties

Investigation and comparison of the properties of gases and liquids; relating variations in viscosity, density, buoyancy and compressibility to the particle model of matter


- viscosity/flow rate
- density / buoyancy
- compare densities
- altering density
- pressure
- compressibility

Lab Activities
Science Olympic Activities
Lab Activities
Problem Solving Activities
Building Models 

Focus 4

Fluid-based Technologies

Identification, Interpretion and application of fluid-based technologies based on their properties


- solubility technologies
- viscosoty/flowrate techs
- transporting fluids
- building a fluid model

Lab Activities and Graphing w/ Excel
Making Model
Demonstrations / Presentations