Earths Spheres
Water, Water Everwhere
Salty Science
Sphere Interactions
Saving Our Resources
100

This sphere includes all the water on Earth.

Hydrosphere

100

This is the percentage of Earth's surface covered by water (to the nearest whole number).

71%

100

True or False: Most of the water on Earth is seawater.

True

100

This interaction occurs when a cow drinks from a creek.

Biosphere and Hydrosphere

100

This should be turned off while brushing teeth to save water.

faucet/water

200

This sphere contains all the living things on the planet.

Biosphere

200

This is the percentage of Earth's total water that is fresh water.

3%

200

This is one of the three main sources of the ocean’s saltiness.

what are hypothermal vents, underwater volcanoes, or rain interacting with rocks.

200

These two spheres interact when a tree grows in the soil.

Biosphere and Geosphere

200

This yard material can be placed around trees and plants to help soil hold moisture.

mulch

300

This sphere is made up of all of Earth’s rocks and soil.

Geosphere 

300

Most of Earth's fresh water is found in these two frozen locations.

ice caps and glaciers

300

This is the name for the deep-sea vents that release minerals into the water.

hypothermal vents

300

These two spheres interact when a river weathers and erodes rocks.

Hydrosphere and Geosphere

300

Installing these on faucets helps reduce water flow and conserve resources.

low-flow faucet aerators

400

This sphere is the layer of gases that surrounds the Earth.

Atmosphere 

400

Besides ice, fresh water is also found in these three specific places.

groundwater, rivers, and lakes
400

True or False: Desalination plants are cheap and easy to operate.

False (They are expensive and hard to operate)

400

These two spheres interact when water vapor in the air cools to form rain.

Hydrosphere and Atmosphere

400

These types of showers are a bad idea if you are trying to conserve water.

long showers

500

This is the term for the effect where mountains block rain.

Rain shadow effect

500

What is the percentage of fresh water found in ground ice and permafrost?

69%

500

This is the only source listed that is NOT a reason for the ocean's saltiness.

the atmosphere and clouds

500

These two spheres interact when a hawk flies through the sky.

Biosphere and Atmosphere

500

A trained hydrologist would suggest these three "reasonable" things to do during a drought.

turning off water while brushing teeth, using mulch, or taking shorter showers