Vector Talk with Esther-
How Energy Works
“ Hello, everyone!” greeted Esther. She was from Vector, a company that gives electricity to us. I learnt new vocabulary which is ‘ sustainable’ meaning lasting a long time. Esther taught us about energy throughout the session. She said “ energy is a force, without the force of energy, nothing can move and nothing can go.” A few minutes later, she taught us that everything we eat has chemical energy in it like apples. Chemical energy is full of nutrients and, that’s what gives you energy. She said, anything that moves like humans has mechanical energy.
Have you ever heard of the words renewable and non renewable energy? Renewable and non renewable energy is energy that can be reused and not reused, and you may ask what energy can’t be reused, of course, the one that says non renewable energy.
Non renewable energy are like fossil fuels, coal and gas. These are all the non sustainable things. If human beings start burning fossil fuels, carbon dioxide will cause air pollution and the air pollution goes around the earth and does nothing and then goes into space.
As we listened, she taught us a scientific fact, she asked “ If you leave 2 glass jars on a windowsill, put ice cubes in them, one which has a glad wrap on and the other is left open, which one would melt faster?” The answer was the icecube in the glad wrap will melt faster, because when the glad wrap is on, it’s raps heat in and wouldn’t go away, so the icecube in the glad wrap will melt faster.
She showed us a small video on turbines. She said that the turbines had to be spreaded out or they will steal each other’s wind. She explained that 16 percent of energy comes from geothermal, but geothermal is a non renewable energy.
Finally, she said that bright sunshine from the sun to earth can be enough to generated energy on earth for 1 whole year. If there is no sun and it’s a rainy day, you can use heat to power up things. We did a experiment about holding up a lamp and a car, letting the light go on the car and the car moves. When you take the lamp further backwards, then the car goes slower. She explained that there is only 5 percent of wind in Wellington.
This session has taught me a lot of knowledge about energy. This is a interesting session and I had fun with it.
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