Science Midterm IV Lesson 1

You have a sample of tap water that is clear, yellowish and

odourless. Is it a sample of pure water? Explain.

Since pure water is clear, colourless, tasteless, and odourless,

the tap water is not pure (yellowish).

Why is it so important that solid water is less dense that liquid

water? Consider the implications for ecosystems if solid water was

more dense than liquid water.

If solid water was more dense than liquid water, the solid water

would sink and crush all the wild life underneath it.

Complete the diagram by adding the correct name for each

process.

a) Melting b) solidification c) Sublimation d) Deposition e) Evaporation f) Condensation

Identify where the three states of matter can be found in the

water cycle.

Liquid) Liquid water is found in snowmelt, run off, precipitation

Rain), condensation and groundwater.

Solid) Solid water is found in precipitation (snow, hail) and

groundwater(permafrost)

Gas) Gaseous water is found in evaporation and

evapotranspiration

5. What are the two types of aquifers (underground water)? What is the difference between them?

Unconfined) topped with permeable layers (water can leak

through)

Confined) topped with impermeable layers (water can not leak

through)