All Energy Comes From The Sun by https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z en-us 2021-02-11 14:23:36 UTC 2026-01-10 02:41:27 UTC hello@padlet.com https://padlet.net/icons/png/2600.png Energy in plants elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192456783 Plants take in energy from sunlight falling on their leaves. They use it to turn water and carbon dioxide from the air into new growth. The process is called photosynthesis. Animals eat plants to get the energy stored in them.]]> 2021-02-11 14:32:32 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192456783 Solar panels elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192463323 These absorb energy radiated from the Sun and use it to heat water.]]> 2021-02-11 14:33:40 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192463323 Solar cells elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192465179 These use the energy in sunlight to produce small amounts of electricity.]]> 2021-02-11 14:33:57 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192465179 Energy in food elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192468297 We get energy from the food we eat. The food may be from plants, or from animals which fed on plants.]]> 2021-02-11 14:34:29 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192468297 Biofuels from plants elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192476723 Wood is an important fuel in many countries. When wood is burned, it releases energy that the tree once took in fro
the Sun. In some countries, sugar cane is grown and fermented to make alcohol. This can
be used as a fuel instead of petrol.
]]> 2021-02-11 14:35:54 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192476723 Biofuels from waste elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192483264 Rotting animal and plant waste can give off methane gas. This is similar to natural gas and can be used as a fuel. Marshes, rubbish tips, and sewage treatment works are all sources of methane. Some waste can also be used directly as fuel by burning it.]]> 2021-02-11 14:36:59 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192483264 Batteries elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192488398 Some batteries (e.g. car batteries) have to be given energy by charging them with electricity. Others are manufactured from chemicals which already store energy. But energy is needed to produce the chemicals in the first place.

]]> 2021-02-11 14:37:49 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192488398 Fossil Fuels elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192494651 Fossil fuels (coal, oil, and natural gas) were formed  from the remains of plants and tiny sea creatures which  lived many millions of years ago. Industrial societies rely on fossil fuels for most of their energy. Many power stations burn fossil fuels.]]> 2021-02-11 14:38:53 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192494651 Weather systems elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192501159 Weather systems
These are driven by energy radiated from
the Sun. Heated air rising above the equator causes belts of wind around the Earth. Winds carry water vapour from the oceans and bring rain and snow.

]]> 2021-02-11 14:40:03 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192501159 Wave energy elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192505130 Waves are caused by the wind (and partly by tides).
Waves cause a rapid up and down movement on the surface of the sea. This movement can be used generators.

]]> 2021-02-11 14:40:45 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192505130 Geothermal energy elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192513135 2021-02-11 14:42:09 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192513135 Hydroelectric energy elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192515202 An artificial lake forms behind a dam. Water
rushing down from this lake is used to turn generators. The lake is kept full by river water which once fell as rain or snow.

]]> 2021-02-11 14:42:32 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192515202 Tidal energy elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192522171 2021-02-11 14:43:41 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192522171 Nuclear energy elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192524585 In a reactor, nuclear fission reactions release energy from the nuclei of uranium atoms. This heats water to make steam for driving generators.]]> 2021-02-11 14:44:07 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192524585 The tides elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192534593 2021-02-11 14:45:49 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192534593 Nucleus of the atom elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192537005 Nucleus of the atom
Radioactive materials have atoms with unstable nuclei (centres) which break up and release energy. The material gives off the energy slowly as thermal energy. Energy can be released more quickly by splitting heavy nuclei (fission). Energy can also be released by joining light nuclei (fusion), as happens in the Sun.

]]> 2021-02-11 14:46:15 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192537005 The sun elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192540169 The sun radiates energy because of nuclear fission reactions deep inside it. Its output is equivalent to that of 3x10^26 electric hotplates. Just a tiny fraction of this reaches the earth.]]> 2021-02-11 14:46:49 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192540169 Wind energy elliepankhurst https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192592578 For centuries people have been using the power of the wind to move ships, pump water, and grind corn. Today, huge turbines are used to turn generators.]]> 2021-02-11 14:55:37 UTC https://padlet.com/elliepankhurst/t0mlk5i89zbmpv1z/wish/1192592578