5th - Science - Unit 7 Lesson 3

Question 0

The energy for the water cycle comes from where?

Answer 0

The sun

Question 1

The constant movement of water as a liquid and a gas between Earth’s air and its surface is ?

Answer 1

Water cycle

Question 2

Solar energy causes water on Earth’s surface to change to gas and rise into the atmosphere during the process called?

Answer 2

Evaporation

Question 3

As gaseous water rises and cools, it turns into droplets of liquid water during the process called?

Answer 3

Condensation

Question 4

Water droplets may fall from the atmosphere back to Earth’s surface as ________, such as rain and snow.

Answer 4

Precipitation

Question 5

Some water soaks into the ground and collects in pores in soil and rock to become _________.

Answer 5

Groundwater

Question 6

Plants take water from the soil and return it to the air through their leaves during what process?

Answer 6

Transpiration

Question 7

The constant exchange of carbon on the Earth is _______________.

Answer 7

Carbon Cycle

Question 8

During photosynthesis, plants take __________ from the air and use it to make food that other living things use.

Answer 8

Carbon

Question 9

Animals and plants burn carbon-rich foods during cellular _________________, and then release carbon dioxide to the atmosphere.

Answer 9

Respiration

Question 10

The exchange of oxygen and carbon dioxide among different living things during respiration and photosynthesis is called what?

Answer 10

Oxygen-carbon dioxide cycle

Question 11

Although most of Earth’s atmosphere is nitrogen, the gas must first be __________ so that it is in a form that most living things can use.

Answer 11

Fixed

Question 12

Nitrogen can be fixed by

   1. Volcanic action
   2. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_, and
   3. Nitrogen-fixing \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.

Answer 12

Lightning and nitrogen-fixing bacteria

Question 13

Plants use nitrogen to make ___________, which get into the bodies of animals when they eat plants and plant-eating animals.

Answer 13

Proteins

Question 14

Nitrogen returns to the soil in the ____________ of animals, and when plants and animals decay.

Answer 14

Waste

Question 15

People can reduce their use of natural resources through ____________.

Answer 15

Recycling

Question 16

What are some of the places where water vapor evaporates from?

Answer 16

Lakes, rivers, oceans, ponds, puddles, cups, plants, trees, etc.

Question 17

The sun heats the water, which makes it change into a vapor, or gas. What is this gas called?

Answer 17

Water vapor

Question 18

When the water vapor changes from a gas to a liquid, it is called?

Answer 18

Condensation

Question 19

What is water vapor water attracted to?

Answer 19

Cold places

Question 20

When water vapor collects, it is known as a ?

Answer 20

Cloud

Question 21

What are the four different types of precipitation?

Answer 21

Rain, snow, sleet and hail

Question 22

What is precipitation?

Answer 22

Any form of water that falls from the atmosphere and reaches the ground.

Question 23

What is surface run off?

Answer 23

Precipitation that moves across the land’s surface and IS NOT absorbed will flow into rivers, lakes Nd streams as runoff.

Question 24

What are the original sources of water where the precipitation will go?

Answer 24

Lakes, rivers, ponds, oceans, etc.

Question 25

Where does the energy from the water cycle come from?

Answer 25

The sun

Question 26

What happens to water after it evaporates?

Answer 26

It becomes condensation.

Question 27

How do clouds form?

Answer 27

Water droplets gather with dust particles (collide) and form clouds.

Question 28

Name four types of precipitation.

Answer 28

Hail, sleet, rain and snow

Question 29

Water that seeps through the ground will become what?

Answer 29

Groundwater

Question 30

Through which process does excess water evaporate out of the plant's leaves?

Answer 30

Transpiration

Question 31

During which phase of the water cycle does liquid change into a gas?

Answer 31

Evaporation

Question 32

During which phase of the water cycle does gas change to a liquid

Answer 32

Condensation

Question 33

What is the name of the gas that water turns into?

Answer 33

Water Vapor

Question 34

What is the process called when water seeps into the ground?

Answer 34

Infiltration

Question 35

Water is constantly doing what?

Answer 35

Moving

Question 36

Be able to draw and label the four main parts of the water cycle.

Answer 36

Page 395

Question 37

Where is carbon found?

Answer 37

In the atmosphere (air)

Question 38

Why is the carbon cycle important?

Answer 38

About 18 percent of your body is carbon. It is also found in the atmosphere and rocks. However, you body cannot use these sources of carbon directly therefore the carbon cycle is very important.

Question 39

In what form is carbon found in the atmosphere?

Answer 39

CO2, or carbon dioxide

Question 40

During the carbon cycle, plants take in ____________ from the air. It is returned to the air _________________________________.

Answer 40

Carbon dioxide, during cellular respiration, when plants burn carbon rich foods.

Question 41

What is the function of decomposers in the carbon cycle?

Answer 41

Decomposers, such as bacteria and insects, break down dead or decaying plants and animals. Because carbon stored in plants and animals cannot be reused until it is eaten or decompose.

Question 42

When decaying plant and animal materials go deep into the ground, they may be turned into ___________, which returns carbon dioxide to the air when they are ________________.

Answer 42

Fossil fuels, burned for energy

Question 43

Why is nitrogen a key element for all organisms?

Answer 43

The proteins that make up the muscles, skin, nerves, bones, blood and enzymes in your body contain nitrogen.

Question 44

Why must nitrogen be fixed before organisms can use it?

Answer 44

The air is 78 percent of nitrogen gas. But few living things can use it in this form so it must be fixed, or changed into a form that organisms can use.