Quiz on Water Density and Its Effects

What is the density of pure water at 4°C?

• 2 g/cm³

• 1.5 g/cm³

• 1 g/cm³

• 0.5 g/cm³

What instrument is used to measure the density of liquids?

• Hydrometer

• Barometer

• Thermometer

• Manometer

How does the density of water change as temperature decreases from 4°C to 0°C?

• It fluctuates

• It remains the same

• It decreases

• It increases

Tags

NGSS.MS-PS1-4

What happens to the density of water when salt is dissolved in it?

• It becomes volatile

• It decreases

• It increases

• It remains unchanged

Why does ice float on water?

• Ice has a higher temperature

• Ice is less dense than water

• Ice is denser than water

• Ice absorbs water

What is the normal salinity of ocean water?

• 35 grams per liter

• 50 grams per liter

• 20 grams per liter

• 10 grams per liter

What effect does increasing pressure have on water density in the ocean?

• It has no effect

• It increases density

• It causes evaporation

• It decreases density

Tags

NGSS.HS-ESS2-5

What happens to the surface water of a lake in polar regions when the temperature is between 4°C and 0°C?

• It evaporates

• It becomes denser

• It freezes

• It sinks

Tags

NGSS.MS-PS1-4

What is the primary cause of water currents in the oceans?

• Tides

• Differences in water density

• Earth's rotation

• Wind patterns

Tags

NGSS.MS-ESS2-6

What happens to the density of water as its temperature increases above 4°C?

• It increases

• It decreases

• It remains constant

• It fluctuates

Tags

NGSS.MS-PS1-4