Sixth Grade Ilearn Science

Which is NOT a cause of water pollution?

• soil erosion

• trees growing

• animal waste

• oil and fertilizer runoff

How is wind caused?

• When air movies from areas of high to low pressure

• when air movies from areas of low to high pressure

• when there is a tornado

• when clouds pass by

Which moon position would be associated with spring tides? (highest high tides and lowest low tides)

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The high ground between two watersheds is called what?

• tributary

• divide

• river system

• headwaters

What us the name of the watershed labeled #2 in the image?

• Atlantic Watershed

• Chesapeake Bay Watershed

• Mississippi River Watershed

• North Carolina Sound Watershed

Oxygen, Water, Sunlight, and Water Temperature are all examples of...?

• biotic factors

• nuetral factors

• living factors

• abiotic factors

What is the image showing an example of

• a waterslide

• point source pollution

• non point source pollution

Which of the following would NOT harm water quality?

• too many chemicals applied to lawns

• soil washed off the land due to clearing forests for development

• trash that is dropped into a storm drain

• building silt fences around construction sites to contain excess sediment

which is not a factor we use to measure water quality?

• turbidity

• humidity

• salinity

• dissolved oxygen

• pH

Which is NOT a benefit of wetlands?

• mosquito control

• flood control

• habitat for many plant and animal species

• natural water filtering