Water is polar. What does that mean?

it is a molecule with opposite charges on opposite ends

it is a molecule with no charge

it is a molecule with identical charges on opposite ends

it is a molecule with too many protons

water expands when it freezes, making ice less dense than water

water compacts when it freezes, making ice more dense than water

hydrogen bonds in water push the ice to the surface

ice is afraid of water, and avoids it

Why does water move from the roots to the leaves of plants?

Capillary action pulls the water molecules like a chain

Water’s cohesion causes it to “pull” towards the leaves

Large bodies of water do not quickly fluctuate in temperature. Why?

Water has a high heat capacity.

Small insects can walk across the surface of calm water. Their feet push the surface of the water down slightly, somewhat like a person walking across a trampoline, but they do not break the surface. What is the best explanation for why this happens?

The insects are light enough so that they do not break the hydrogen bonds holding the water molecules together

The insects actually use their wings to hover slightly above the water's surface and they only skim it with their feet

The insects' feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water's surface

The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next

Water has a much higher specific heat than most other covalent compounds. What do you predict might happen if water had a low specific heat instead?

Organisms that are sensitive to changes in temperature would die

Flooding would occur and animals would be forced to migrate

Harmful organisms living in water would reproduce at a rapid rate

Plants would not have enough water to effectively carry out photosynthesis

Watersheds includes surface water and ground water. Which of the following are surface water?

Lakes, ponds, creeks streams, ocean, rivers

Which of the following are groundwater?

Lakes, ponds, creeks streams, ocean, rivers

To use water found in an aquifer people would

drill a well to below the water table

Water collects in an aquifer because the layer below it is

impermeable (water can not pass through it)

permeable (water can pass through it)

What type of Aquifers are A and B?

Aquifer A is a Unconfined Aquifer and Aquifer B is a Confined Aquifer

Aquifer A is a Confined Aquifer and Aquifer B is a Unconfined Aquifer

When precipitation falls on land surfaces, it begins to flow toward sea level. The water is more likely to flow toward sea level as groundwater if

the surface is porous and there are lots of interconnected spaces underground.

the surface is not porous and there are lots of interconnected spaces underground.

the surface is porous and there are few interconnected spaces underground.

the surface is not porous and there are few interconnected spaces underground.

When wetlands add water to the groundwater system, they are recharging the groundwater. When wetlands take water from the groundwater system, the groundwater discharges . Use this information to select the true statement.

Groundwater sometimes discharges into a stream or lake.

Groundwater never discharges into streams or lakes.

Groundwater seeks an imbalance, discharging more than it is recharge

Groundwater cannot discharge, it can only be recharged.

8ES2.1 Quizizz Study Guide

Authored by J. Picha

Science

8th Grade

NGSS covered

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50 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which represents the distribution of water on Earth?

3% freshwater, 97% salt water

97% freshwater, 3% salt water

71% freshwater, 29% salt water

29% freshwater, 71% salt water

Tags

NGSS.MS-ESS2-4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Where is most of the freshwater found on Earth?

lakes

polar ice caps and glaciers

oceans

rivers

Tags

NGSS.MS-ESS2-4

MULTIPLE CHOICE QUESTION

30 sec • 12 pts

Water underground is stored in ____________.

aquifers

reservoirs

wells

depositories

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Approximately _____ percent of Earth's water is freshwater.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Approximately what percent of Earth's water is salt water?

Tags

NGSS.MS-ESS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Water moves through Earth's layers until it reaches a ______ layer.

saturated

water table

impermeable layer

permeable

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does runoff end up?

ponds

streams

rivers

all of the above

Tags

NGSS.MS-ESS2-4

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8ES2.1 Quizizz Study Guide

Which represents the distribution of water on Earth?

Where is most of the freshwater found on Earth?

Water underground is stored in ____________.

Approximately _____ percent of Earth's water is freshwater.

Approximately what percent of Earth's water is salt water?

Water moves through Earth's layers until it reaches a ______ layer.

Where does runoff end up?

The process where rain water soaks into the ground through soil and rocks is called __________.

Which of the following is an example of COHESION?

Water is polar. What does that mean?

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