Curriculum Outcomes involved:

• Earth and Space Science: Water System on Earth
• Waves, Tides, and Water Currents
• Carry out procedures in order to investigate how temperature differences in water cause currents
• Explain how waves and tides are generated
• Formulate operational definitions, on the basis of investigations of waves for: wave length, height, crest, trough
• Shorelines
• Explain how waves and tides interact with shorelines

• Physical Science: Fluids
• Floating and Sinking - Density
• Describe the relationship among the mass, volume, and density of solids, liquids, and gases using the particle model of matter
• Analyze quantitatively the density of various substances and suggest explanations for discrepancies in data, such as the measurement of the volume of irregular objects by water displacement
• Explain the effects of changes in temperature on the density of solids, liquids, and gases and relate the result to the particle model of matter
• Describe situations in life where the density of substances naturally changes or is intentionally changed
• Forces in Fluids
• Describe the movement of objects in terms of balanced and unbalanced forces
• Describe qualitatively the difference between mass and weight
• Explain quantitatively the relationship between force, area, and pressure
• Explain qualitatively the relationship among pressure, volume, and temperature when liquid and gaseous fluids are compressed or heated

• Physical Science: Optics
• Properties of Visible Light
• Identify and describe the following properties of visible light
• Travels in a straight line (rectilinear propagation)
• Speed of light in air is 300,000 km/s
• Reflection
• Refraction and dispersion
• Travels in a vacuum and in some types of media
• Reflection
• Describe the laws of reflection of visible light and their applications in everyday life
• Regular versus diffuse reflection
• Angle of incidence = angle of reflection
• Formulate operational definitions for incidence, reflection, and the normal
• Estimate angles of incidence and reflection
• Construct an optical device using mirrors
• Identify and correct practical problems in the way a constructed optical device functions
• Refraction and Dispersion
• Predict the effect of transparent media of varying densities on the angle of refraction of light
• Estimate angles of refraction
• Describe qualitatively how visible light is refracted
• Estimate focal length of a convex lens by finding its focal point
• Describe different types of electromagnetic radiation, including infrared, ultraviolet, X-rays, microwaves, and radio waves
• Compare the properties of visible light to the properties of other types of electromagnetic radiation, including infrared, ultraviolet, X-rays, microwaves, and radio waves
• Explain the importance of using the words frequency and wavelength correctly

Demonstrations that may apply to your lesson plans:

• Earth and Space Science: Water System on Earth
• Waves, Tides, and Water Currents
• Shorelines

• Physical Science: Fluids
• Floating and Sinking - Density
• Forces in Fluids

• Physical Science: Optics
• Properties of Visible Light
• Reflection
• Refraction and Dispersion

If you are a teacher and would be interested in helping us develop appropriate demonstrations for Grade Eight, please feel free to This email address is being protected from spambots. You need JavaScript enabled to view it. us!