How much of Earth's surface is covered with water?
Three fourths (3/4) or 75%.
100
What are the 3 forms of water?
1. Liquid
2. Solid
3. Gas
100
What is the changing of a liquid into a gas called?
Evaporation.
100
What is water that seeps down and collects in underground spaces called?
A. Saltwater
B. Groundwater
C. Water Vapor
D. Well water
B. Groundwater.
200
Water helps keep your body at the right ________________.
Temperature.
200
What is another name for Earth and why do we call it that?
"The blue planet" because 75% of its surface is covered with water.
200
At what temperature does water freeze solid?
0 degrees Celsius/32 degrees Fahrenheit.
200
What is the changing of a gas into a liquid called?
Condensation.
200
Why do people have to use water that is cleaned?
Water may have salt, dirt or germs in it.
300
Why are wetlands an important environmental resource? Name 2 reasons.
1. They are homes for many animals.
2. They help prevent floods by soaking up extra water.
300
Name 3 things that people cannot do with salt water.
1. Drink
2. Wash clothes
3. Water plants
300
What will happen to water in a plastic bottle when it freezes?
A. It will contract.
B. It will evaporate.
C. It will expand.
D. It will stay the same.
C. It will expand.
300
What is precipitation?
Water that falls to Earth as rain, hail, sleet or snow.
300
Some of the chemicals that are added to water at a water-treatment area ____________________.
A. Kill germs
B. Harm your teeth
C. Turn it brown
D. Turn water into water vapor
A. Kill germs
400
Why is fresh water important to people?
1. It has little salt.
2. People drink fresh water.
400
What kind of water is found as an invisible gas in the air?
Water Vapor.
400
Name 4 types of precipitation.
1. Rain
2. Snow
3. Sleet
4. Hail
400
What is a water cycle?
The movement of water from Earth's surface into the air and back again.
400
List 5 places where precipitation falls and collects.
1. Streams
2. Lakes
3. Rivers
4. Oceans
5. Ground
500
Name 6 ways people use water.
1. Drink
2. Food
3. Crops and Farms
4. Transportation
5. Industry
6. Electricity
500
Describe one way that fresh water and ocean water are alike and different.
Fresh water and salt water can both evaporate (turn into water vapor) and they have different amounts of salt and different uses (Salt water: transportation, food/Fresh water: drink, industry).
500
What do small droplets of condensation form into?
Small droplets of water form into clouds and fog.
500
Water moves through the water cycle. Describe how the water cycle happens.
1. Water evaporates and becomes water vapor.
2. The water vapor turns to condensation in the cooler air.
3. Water droplets form into clouds.
4. Precipitation happens when the clouds get too heavy.
5. The precipitation falls to the ground and is collected in lakes, rivers and oceans.
500
Put the 4 stages of the water cycle in order.
Collection,
Condensation,
Precipitation,
Evaporation,