Have you ever wondered where we get the energy to power our homes, schools, and cities? For a long time, people have used resources like coal, oil, and natural gas. These are called non-renewable resources because once we use them up, they're gone forever. It takes millions of years for the Earth to make more.
Today, many people are working to use more renewable resources for energy. Renewable resources are natural sources of energy that can be used again and again. They don't run out and are usually cleaner for our planet. Let's learn about some of these amazing renewable resources!
Solar Energy
The sun gives us light and heat every day. Solar energy comes from the sun's rays. Special panels called solar panels can collect this energy and turn it into electricity. You might have seen solar panels on the roofs of houses or in large fields. The best thing about solar energy is that as long as the sun shines, we will have this energy source!
Wind Energy
Have you ever flown a kite or felt a strong breeze push against you? That's wind power! Tall structures called wind turbines have large blades that spin when the wind blows. These spinning blades help generate electricity. Wind farms with many turbines are often built in open, windy areas like plains or near oceans.
Water Energy (Hydropower)
Moving water has a lot of energy. Hydropower plants use the energy of falling or flowing water to generate electricity. Many hydropower plants are built near dams on rivers. As water flows through the dam, it spins large turbines, which create electricity. Hydropower is one of the oldest forms of renewable energy.
Biomass Energy
Biomass energy comes from plants and animals. Wood, crop waste, and even animal manure can be burned to produce heat or converted into fuels. When we use biomass for energy, we're using materials that can be grown again, making it renewable.
Geothermal Energy
Deep inside the Earth, it's very hot! This heat is called geothermal energy. In some places, this heat is close enough to the surface that we can access it. Geothermal power plants use this heat to create steam, which then generates electricity. Some homes even use geothermal energy for heating and cooling.
People are working hard to use more renewable resources because they help protect our environment. Unlike fossil fuels like coal and oil, renewable resources create little or no pollution. They don't contribute as much to climate change, which is causing our planet to get warmer.
Many countries are building more solar panels, wind turbines, and other renewable energy systems. Scientists are also working on new technologies to make renewable energy even better. In the future, we might get most of our electricity from these clean, never-ending resources.
Each of us can help by saving energy at home. When we use less energy, we need less of any kind of resource, renewable or not. By turning off lights when we leave a room or walking instead of asking for a ride in a car, we're helping to protect Earth's resources for future generations.
What are renewable resources?
Resources that cost a lot of moneyResources that can be used again and againResources that were discovered recentlyResources that come from other planetsWhich of these is NOT a renewable resource?
WindSolarOilHydropowerWhere does solar energy come from?
The moonThe sunUndergroundThe oceanWhat structures are used to collect wind energy?
Solar panelsWind turbinesDamsGeothermal plantsHydropower uses the energy of what to create electricity?
Moving waterHot steamSunlightWindWhat is biomass energy made from?
Rocks and mineralsPlants and animalsWater and airMetalsWhere does geothermal energy come from?
The sun's heatStrong windsHeat inside the EarthOcean wavesWhy are renewable resources better for the environment?
They are more colorfulThey create more jobsThey are cheaperThey create little or no pollutionWhat happens to non-renewable resources when we use them?
They grow back quicklyThey move to another locationThey are gone forever once used upThey turn into renewable resourcesHow can you help save energy at home?
Leave all the lights onKeep the refrigerator door openTurn off lights when you leave a roomTake longer showers