The Sun           The Sun is a yellow dwarf star, ___ (1). It is believed to be about 5 billion years old. The Sun spins slowly on its axis (2). The center, or core, of the Sun is very hot. A process called «nuclear fusion» takes place there. Nuclear fusion produces a lot of energy. Some of this energy travels out into space (3). Some of it arrives at the Earth! Streams of gas particles known (4). On the Sun's surface, we can see storms. We call these storms «sunspots» (5). The Sun also produces big explosions of energy called solar flares. These flares shoot fast (6). These particles can hit the Earth's atmosphere and cause a glow called an Aurora.

A) as the solar wind also flow out from the Sun
B) moving particles off the Sun's surface
C) which means it is a medium size star
D) because they look like dark spots on the Sun's surface
E) as heat and light
F) as it revolves around the galaxy

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lizavetttok    2   12.12.2020 08:04    0