(628)-272-0788 info@etutorworld.com
Select Page

Energy Resources

Grade 7 Science Worksheets

Energy resources are resources that naturally occur in the planet that help humans to get energy in the form of mostly electricity while natural conditions are favorable. There are two types of energy resources. Non-Renewable resources are coal, oil, wood, or gas. Renewable resources are wind, solar, hydroelectric, and also wave power.

Energy Resources – Grade 7 Science Worksheets

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!

Fossil Fuels

Fossil fuels are remains of once-living organisms, compressed at high temperature and pressure over millions of years. They are coal, which is made from dead plant matter, and oil and gas, which are made from dead marine animals. These fossil fuels have a lot of energy contained within them, which gets out when the fuel is burned.

When fossil fuels are burned in a power plant, the heat released boils water, producing steam. That steam which comes out makes the turbine spin inside a large magnetic field, and this produces electricity. But the main disadvantage of this is it is not at all environment friendly and this creates lot of harmful gases including greenhouse gases like carbon dioxide, which are causing the earth’s climate to warm. Ideally, we would want to use renewable energy sources for getting electricity.

Other sources of energy

Renewable energy sources can often be called as alternative energy sources. Renewable energy comes from natural processes that replenish themselves and never get exhausted in mankind’s life spans. They also tend to be clean energies that don’t pollute.

Solar Energy

Solar energy is the radiance of the sun in the form of heat and light which is harnessed by various technologies in the form of solar panels, solar heating, photovoltaic etc. They can be passive or active.

Energy Resources – Grade 7 Science Worksheets

In passive solar energy, the orientation and the layout of a building is taken into consideration, the building materials and even the way light will be deflected in the building, to fully utilize the free energy from the sun received in a particular area. In active solar energy, photovoltaic solar panels are used to collect the sun’s energy so it can be stored and used. But, Solar panels can be expensive and on cloudy days, both passive and active solar energy is not that useful.

Energy Resources – Grade 7 Science Worksheets

Credit:https://commons.wikimedia.org/wiki/File:Solar_panels_on_a_roof.jpg

Wind Energy

Wind energy can be used to move wind turbine blades and converted to electrical current to be used to get power for electricity. There is no pollution because of this, and wind is ever present in the Earth and wind turbines can be setup on land or offshore. But, in places where there is less or no wind it is then not possible.

Energy Resources – Grade 7 Science Worksheets

 Credit: https://overwatchuas.solutions/energy/wind-turbines/51

Hydroelectric energy

Hydroelectric energy is a renewable energy resource because it’s an energy resource that regenerates in a short time period. Sunlight, wind and heat generated from the earth are similar types of renewable energy resources. Just like you can’t stop water from flowing, you can’t stop the sun from shining or the wind from blowing. The resource ‘renews’ itself as it is used, and unlike things such as minerals and metals, does not occur on Earth in a limited supply.

Water can be used to generate hydroelectric power, which we get from water flowing through dams. This is renewable resource because we don’t actually take the water out of the system to get electricity. Like sunshine and wind, work happens just by the flow of water.

Energy Resources – Grade 7 Science Worksheets

Geothermal energy

Geothermal energy is a renewable resource. Volcanoes from Earth that release lava when they erupt are a huge source of Renewable energy.  Geothermal  is two words  ‘geo’ means ‘earth’ and ‘thermal’ means ‘heat. The heat from within the earth escapes in places where there is a crack, usually where the crust is very thin. Old Faithful geyser in Yellow stone National Park for instance and other natural springs and geysers happen because of geothermal energy and that water is hotter than 230°C.

Biofuels

Biofuels also known as biogas are resources made from living organisms –that is biological fuels. Ethanol is a biofuel because it comes from corn. Biodiesel is vehicle fuel made from vegetable oil, and there are certain cars that run on used oil from restaurants!

Wood, animal dung and peat are used to burn for heat and cooking mostly in rural and mountainous areas. They are a result of dead or decaying matter of living organisms.

Learn more about Energy Resources 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.

eTutorWorld Understands Math Tutoring | Online Math Worksheets are Important Tools

Understanding graphs, charts, and opinion polls in a newspaper, for calculating house and car payments, and for choosing a long-distance telephone service are impossible without strong math skills …and the only way to develop strong math skills is by constant practice.

‘Practice makes a man perfect’ holds true for no other field better than for math. A middle or high school student must set aside a minimum of an hour for math every day. Other than textbooks, worksheets help you revise and understand concepts better.

Our expert tutors prepare online maths worksheets that are age and grade-appropriate. Grade-wise math worksheets for Elementary Math, Arithmetic, Pre-Algebra, Algebra, Geometry, Trigonometry, Statistics, Pre-Calculus and Calculus can be solved to improve math skills, to get ahead or to even catch up.

You may download these FREE online math worksheets in the PDF format, and then print and email us their solutions for a free evaluation and analysis by eTutorworld’smath expert tutors.

You may solve these worksheets by yourself or with your peers while studying together.

The Answer Key at the end of each worksheet allows for a self-evaluation.

Personalized Online Tutoring

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 CLASS.

No credit card required, no obligation to purchase.
Just book a free class to meet a tutor and get help on any topic you want!

Check Point

Fill in the blanks:

  1. …………….. ……………….are those which create chances to generate electricity based on its natural conditions.
  2. ………………… ………….. are natural fuels formed from the remains of once-living organisms, compressed at high temperature and pressure over millions of years.
  3. Solar energycan be ………… or active.
  4. Hydroelectric energy is a ………….. energy resourcebecause it’s an energy resource that regenerates in a short time period.
  5. Biofuels also known as …………. are resources made from living organisms.

Answer Key

  1. Energy resources
  2. Fossil fuels
  3. Passive
  4. Renewable
  5. Biogas

Pricing for Online Tutoring

Tutoring PackageValidityGrade (1-12), College
5 sessions1 Month$139
1 session1 Month$28
10 sessions3 months$269
15 sessions3 months$399
20 sessions4 months$499
50 sessions6 months$1189
100 sessions12 months$2249
Save 10% on ALL Tutoring Packs with Code BLOOM10
0
Days
0
Hours
0
Minutes
0
Seconds
Save 10% with Code BLOOM10
0
Days
0
Hours
0
Minutes
0
Seconds