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D - Science - Ch 16

The Sun

The sun’s energy comes from what process? nuclear fusion
What occurs in nuclear fusion? hydrogen atoms join together to form helium atoms and produce energy
Where does nuclear fusion occur in the sun? in the sun’s center, or core
Order the layers of the sun’s interior from inner layer to outer layer. the core, the radiation zone, and the convection zone
Order the layers of the sun’s atmosphere from inner layer to outer layer. the photosphere, the chromosphere, and the corona
Which layer do you see when you look at a typical image of the sun? the photosphere
How can you identify the chromosphere during a total solar eclipse? it has a reddish glow visible just around the photosphere
Why can you see a corona during a total solar eclipse? the moon blocks light from the photosphere, so the corona becomes visible
The corona sends out a stream of electrically charged particles called the ________________________. solar wind
What are three features on or above the sun’s surface? sunspots, prominences & solar flares
What are sunspots? areas of gas on the sun’s surface that are cooler than the gases around them
What are prominences? reddish loops of gas that link different parts of sunspot regions
What are solar flares? large eruptions of gas out into space
When solar flares increase solar wind from the corona, what do they cause in Earth’s upper atmosphere? auroras, or magnetic storms
Created by: lprinke



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