Approximately how many minutes does it take for the light from the sun to reach Earth?
30
8
120
200
What do you call the well-defined areas in the sun's surface that appear darker than their surroundings?
Solar flares
Sun shadows
Solar shades
Sunspots
In four to five billion years, the sun's outer layers will expand as the core's hydrogen fuel is used up, contracts and heats up. What is this phase called?
Yellow giant phase
Red giant phase
Blue giant phase
White giant phase
Who is the 17th century scientist that pioneered telescopic observations of the sun?
Newton
Copernicus
Galileo
Pasteur
What do you call the visible surface of the sun, which is the layer below which the sun becomes opaque to visible light?
Photosphere
Solsphere
Neurosphere
Hydrosphere
What do you call a violent explosion in the sun's atmosphere with an energy that is the equivalent of millions of hydrogen bombs?
Solar wind
Solar eclipse
Solar flare
Solar granulation
Solar panels transfer energy from what source for electricity and heat?
The moon
Water
The sun
The stove
Solar panels were used in homes over 100 years ago for what purpose?
Fireplaces
Hot water heating
For cooking
For lighting
What does a solar panel do?
Collects and converts solar energy into electricity or heat
Collects and converts water into electricity or heat
Collects water fro air conditioning units
Acts as insulation for water heate
What is a solar panel a collection of?
Mirrors
Polar ice
Solar ice
Solar cells