Quiz about Earth's Water EOU Review

Question 1

What type of water is safe to drink when cleaned or treated?

Accepted Answer

Freshwater

Answer

Saltwater

Answer

Runoff

Answer

Ocean water

Question 2

Where is freshwater found?

Accepted Answer

Rivers, lakes, and streams

Answer

Oceans

Answer

Saltwater seas

Answer

Icebergs only

Question 3

What is water that flows over land called?

Accepted Answer

Runoff

Answer

Precipitation

Answer

Groundwater

Answer

Surface water

Question 4

What happens during evaporation?

Accepted Answer

Liquid water turns into gas

Answer

Water vapor turns into liquid

Answer

Water soaks into the ground

Answer

Snow falls from the sky

Question 5

What forms when water vapor cools and turns into liquid?

Accepted Answer

Condensation

Answer

Rain

Answer

Evaporation

Answer

Ice

Question 6

Which is an example of precipitation?

Accepted Answer

Hail

Answer

Fog

Answer

Water vapor

Answer

Steam

Question 7

What is the main source of energy for the water cycle?

Accepted Answer

Sun

Answer

Moon

Answer

Rain

Answer

Wind

Question 8

What is groundwater?

Accepted Answer

Water that soaks into the soil

Answer

Rain that evaporates

Answer

Water stored in clouds

Answer

Saltwater below sea level

Question 9

Which part of the ocean is the shallow edge of a continent?

Accepted Answer

Continental shelf

Answer

Ocean plain

Answer

Trench

Answer

Mid-ocean ridge

Question 10

What is a deep, narrow part of the ocean floor?

Accepted Answer

Trench

Answer

Slope

Answer

Ridge

Answer

Plain

Question 11

What is the flat, deep floor of the ocean called?

Accepted Answer

Ocean plain

Answer

Slope

Answer

Trench

Answer

Shelf

Question 12

What are tiny pieces of broken rock called?

Accepted Answer

Sediment

Answer

Trench

Answer

Ridge

Answer

Soil

Question 13

What is a mid-ocean ridge?

Accepted Answer

Mountain range on the ocean floor

Answer

Deep trench

Answer

Flat plain

Answer

River under water

Question 14

What is a surface wave?

Accepted Answer

Wave on top of ocean water

Answer

Ice sheet

Answer

Rainwater wave

Answer

Earthquake wave

Question 15

What causes surface currents?

Accepted Answer

Wind

Answer

Rain

Answer

Whales

Answer

Sunlight

Question 16

What causes deep currents?

Accepted Answer

Changes in water temperature

Answer

Boats

Answer

Hurricanes

Answer

Waterfalls

Question 17

What helps plants grow by soaking into the ground?

Accepted Answer

Groundwater

Answer

Saltwater

Answer

Precipitation

Answer

Snow

Question 18

What is an ocean trench?

Accepted Answer

A deep valley in the ocean

Answer

A wave

Answer

A tall mountain

Answer

A shelf

Question 19

What is a food chain?

Accepted Answer

A path that energy takes from one living thing to another

Answer

A group of clouds

Answer

A group of rocks

Answer

A group of whales

Question 20

What is a food web?

Accepted Answer

Several food chains linked together

Answer

A collection of plants

Answer

A spider web in the ocean

Answer

A fishing net

Question 21

What are phytoplankton?

Accepted Answer

Tiny ocean plants

Answer

Baby fish

Answer

Shells

Answer

Coral

Question 22

What are zooplankton?

Accepted Answer

Tiny ocean animals

Answer

Large whales

Answer

Small plants

Answer

Shells

Question 23

What do producers do?

Accepted Answer

Make their own food

Answer

Eat other animals

Answer

Swim in schools

Answer

Hunt for prey

Question 24

What do consumers do?

Accepted Answer

Eat other living things

Answer

Make sunlight

Answer

Float in water

Answer

Photosynthesize

Question 25

What is bioluminescence?

Accepted Answer

Light made by deep-sea organisms

Answer

Light from the sun

Answer

Reflection from ice

Answer

Heat from rocks

Question 26

What zone has no sunlight?

Accepted Answer

Dark zone

Answer

Sunlight zone

Answer

Twilight zone

Answer

Clear zone

Question 27

Where do most ocean animals live?

Accepted Answer

Sunlight zone

Answer

Deep zone

Answer

Mountain zone

Answer

Waterfall zone

Question 28

What helps move warm and cold water around the world?

Accepted Answer

Surface currents

Answer

Rain

Answer

Trenches

Answer

Sediment

Question 29

What causes runoff?

Accepted Answer

Water running off land after precipitation

Answer

Snowfall

Answer

Steam

Answer

Bioluminescence

Question 30

Why does freshwater freeze faster than saltwater?

Accepted Answer

Salt lowers freezing point

Answer

Salt is heavy

Answer

Salt is cold

Answer

Salt is slippery

Question 31

What is one way to conserve water?

Accepted Answer

Turn off water while brushing teeth

Answer

Leave the faucet running

Answer

Use a sprinkler all day

Answer

Wash the car every day

Question 32

What is the ocean ecosystem?

Accepted Answer

All living and nonliving things in the ocean

Answer

Only fish in the ocean

Answer

Rocks and shells

Answer

Just coral reefs

Question 33

What kind of water is in oceans?

Accepted Answer

Saltwater

Answer

Freshwater

Answer

Groundwater

Answer

Ice water

Question 34

What layer of the ocean is dim like evening?

Accepted Answer

Twilight zone

Answer

Sunlight zone

Answer

Dark zone

Answer

Ridge zone

Question 35

What lives in the dark zone?

Accepted Answer

Bioluminescent animals

Answer

Plants that use sunlight

Answer

Zooplankton

Answer

Sea turtles

Question 36

What is the purpose of water treatment plants?

Accepted Answer

To clean dirty water

Answer

To make water salty

Answer

To freeze water

Answer

To collect waves

Question 37

What can pollute water?

Accepted Answer

Trash and oil

Answer

Ice

Answer

Wind

Answer

Plants

Question 38

What helps move nutrients in the ocean?

Accepted Answer

Deep currents

Answer

Boats

Answer

Surface currents

Answer

Rain

Question 39

What do animals in the deep ocean use to get energy without sunlight?

Accepted Answer

Chemosynthesis

Answer

Water pressure

Answer

Chewing rocks

Answer

Waving fins

Question 40

What is found in the center of the ocean floor and forms new land?

Accepted Answer

Mid-ocean ridge

Answer

Ocean plain

Answer

Shelf

Answer

Trench

Question 41

What ocean feature is closest to the shore?

Accepted Answer

Continental shelf

Answer

Mid-ocean ridge

Answer

Ocean trench

Answer

Deep current

Question 42

What is a large body of water surrounded by land?

Accepted Answer

Lake

Answer

Ocean

Answer

River

Answer

Runoff

Question 43

What small body of still water might be in a park?

Accepted Answer

Pond

Answer

Stream

Answer

River

Answer

Sea

Question 44

What body of water flows into lakes or oceans?

Accepted Answer

River

Answer

Runoff

Answer

Glacier

Answer

Ice

Question 45

What do we call a moving body of freshwater?

Accepted Answer

Stream

Answer

Ocean

Answer

Lake

Answer

Sediment

Question 46

What tool brings groundwater to the surface?

Accepted Answer

Well

Answer

Bucket

Answer

Drain

Answer

Filter

Question 47

Which water form falls as soft white flakes?

Accepted Answer

Snow

Answer

Rain

Answer

Sleet

Answer

Hail

Question 48

Which statement best explains why freshwater is a limited resource even though Earth is mostly water?

Accepted Answer

Most freshwater is stored underground or frozen in glaciers

Answer

Most of Earth's water is freshwater

Answer

Freshwater can be created from saltwater easily

Answer

Rain provides unlimited freshwater

Question 49

Why do surface ocean currents affect global climate patterns?

Accepted Answer

They move warm and cold water that influences temperatures worldwide

Answer

They carry freshwater to dry places

Answer

They help the ocean freeze slower

Answer

They create tsunamis

Question 50

Which part of the water cycle helps form groundwater?

Accepted Answer

Precipitation soaking into the soil

Answer

Evaporation

Answer

Condensation

Answer

Ocean wave movement

Question 51

Where is new ocean floor created?

Accepted Answer

Mid-ocean ridge

Answer

Trench

Answer

Ocean plain

Answer

Continental shelf

Question 52

Why are clouds formed during the condensation step of the water cycle?

Accepted Answer

Water vapor cools and becomes liquid droplets that form clouds

Answer

Water turns into ice

Answer

Water is pulled underground

Answer

Sunlight freezes the air

Question 53

Why are phytoplankton essential to the ocean food web?

Accepted Answer

They are producers and make food for many organisms

Answer

They eat fish

Answer

They clean the ocean floor

Answer

They use chemosynthesis

Question 54

How does pollution impact the water cycle and the ocean ecosystem?

Accepted Answer

It contaminates water and harms plants and animals

Answer

It makes rainfall stop

Answer

It adds nutrients to water

Answer

It helps form sediment

Question 55

Which of the following BEST explains how groundwater is connected to the water cycle?

Accepted Answer

It comes from precipitation soaking into the soil

Answer

It only forms during evaporation

Answer

It is collected in oceans

Answer

It is frozen rain under the ground

Earth's Water EOU Review

62 questions

What type of water is safe to drink when cleaned or treated?

Which type of water makes up most of Earth’s water?

Where is freshwater found?

What is water that flows over land called?

What happens during evaporation?

What forms when water vapor cools and turns into liquid?

Which is an example of precipitation?

What is the main source of energy for the water cycle?

What is groundwater?

What does “conserve” mean?

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