Hydrosphere and Atmosphere
Grade 8 Science Worksheets
Hydrosphere
The Hydrosphere is made up of all those areas on the surface of earth that are covered in water or ice. Oceans and seas, rivers and lakes, glaciers and underground water, even the water vapor in the atmosphere, all of these constitute the hydrosphere. It covers almost 70% of the earth’s surface. Only 30% is land, or Lithosphere. The rivers and lakes contain Fresh Water while the oceans and seas contain Salt Water.
The hydrosphere is essential for life on earth. It provides water for animals and plants, it wears away rocks to make soil, it controls the earth’s weather and climate.
![Hydrosphere and Atmosphere1](https://staging.etutorworld.com/wp-content/uploads/2020/08/Hydrosphere-and-Atmosphere1.png)
Constituents of the hydrosphere
Personalized Online Tutoring from eTutorWorld
eTutorWorld offers affordable one-on-one live tutoring over the web for Grades K-12, Test Prep help for Standardized tests like SCAT, CogAT, MAP, SSAT, SAT, ACT, ISEE and AP. You may schedule online tutoring lessons at your personal scheduled times, all with a Money-Back Guarantee. The first one-on-one online tutoring lesson is always FREE, no purchase obligation, no credit card required.
For answers/solutions to any question or to learn concepts, take a FREE TRIAL Session.
No credit card required, no obligation to purchase.
Just schedule a FREE Sessions to meet a tutor and get help on any topic you want!
![Hydrosphere and Atmosphere2](https://staging.etutorworld.com/wp-content/uploads/2020/08/Hydrosphere-and-Atmosphere2.png)
Constituents of the atmosphere
Atmosphere
The air surrounding the earth as far as 1,000 miles is called the Atmosphere. Nitrogen makes up about 78% of the atmosphere, oxygen is about 21%, the remaining 1% is argon and some other gases. The lowest part of the atmosphere, known as the Troposphere, accounts for clouds, winds, storms and other weather features. The air thins out as you ascend above the troposphere, eventually becoming outer space.
The atmosphere is essential for the air we breathe, for providing warmth, and for preventing harmful solar rays from reaching earth.
The Water Cycle
The elements of the hydrosphere are constantly in motion. Water is continuously moving from oceans to air, to land, and back to the oceans. This Water Cycle is driven by the sun. The sun evaporates the water from the oceans, making it rise in the form of water vapor into the atmosphere. The vapor forms clouds which Precipitate to fall back to earth in the form of rain or snow or hail or sleet or some other form of moisture. This distribution and circulation of water ensures that we always have enough water on the planet at all times.
The water cycle does the following –
- It fills all the water bodies – oceans, lakes, rivers
- On land, it seeps into the ground to create Ground Water supply, which runs off to fill the rivers and eventually the seas
- In mountainous areas it forms snow, ice and glaciers, which melt in warm weather to fill rivers and seas
![Hydrosphere and Atmosphere3](https://staging.etutorworld.com/wp-content/uploads/2020/08/Hydrosphere-and-Atmosphere3.png)
Thus, the hydrosphere and the atmosphere work in unison to keep the water cycle running.
![Hydrosphere and Atmosphere4](https://staging.etutorworld.com/wp-content/uploads/2020/08/Hydrosphere-and-Atmosphere4.png)
Check Point
- The ice and water content on earth makes up the ______.
- The lowest part of the atmosphere is called the ______.
- Hydrosphere and Atmosphere are responsible for –
- Controlling the earth’s weather and climate
- Running the water cycle
- Life of animals and plants on earth
- All of the above
- Which of the following is not a form of precipitation?
- Snow
- Rain
- Ash and dust
- Hail and sleet
- Water which seeps into the land is called _______.
Answer Key
- Hydrosphere
- Troposphere
- d) All of the above
- c) Ash and dust
- Ground water
Learn more about Tools Measurement and SI Units and other important topics with 8th Grade Science Tutoring at eTutorWorld. Our expert science tutors break down the topics through interactive one-to-one sessions. We also offer the advantage of customized lesson plans, flexible schedules and convenience of learning from home.
Schedule a Free session to clear worksheet doubts
No credit card required, no obligation to purchase.
Just schedule a FREE Sessions to meet a tutor and get help on any topic you want!
Learn more about Scientific Method and other important topics with 7th Grade Science Tutoring at eTutorWorld. Our expert science tutors break down the topics through interactive one-to-one sessions. We also offer the advantage of customized lesson plans, flexible schedules and convenience of learning from home.
Pricing for Online Tutoring
Tutoring Package | Validity | Grade (1-12), College |
---|---|---|
5 sessions | 1 Month | $124 |
1 session | 1 Month | $25 |
10 sessions | 3 months | $239 |
15 sessions | 3 months | $354 |
20 sessions | 4 months | $449 |
50 sessions | 6 months | $1049 |
100 sessions | 12 months | $2049 |
8th Grade Free Worksheets
- The Universe
- Heredity
- Evolutionary Theory
- Structure of the atom
- Ethical Practices
- Unveiling the mystery behind the physical universe
- Components of the universe
- Celestial phenomena
- The tilt of Earth’s axis
- The causes of high and low tides
- Earth Systems
- Rocks and Fossils
- Weather and Climate
- Basics of chemical reactions
- Types of Chemical reactions – Endothermic, exothermic, oxidation, reduction reactions
- Catalysts and enzymes
- Compounds and mixtures
- Acids, Bases and pH Indicators
Images Credit:
https://storage.needpix.com/rsynced_images/hydrosphere-1929070_1280.png
https://upload.wikimedia.org/wikipedia/commons/5/53/Atmosphere.png
https://upload.wikimedia.org/wikipedia/commons/9/94/Water_cycle.png