The Sun
What is the Sun?
- Emmanuel
- The Sun is a big, hot ball of glowing gas in the sky.
- It's like a giant star that gives us light and warmth.
Solar energy is a good source of renewable energy.
True or False
- Yared
True
How does light travel?
Light travels in straight lines.
How long do stars last?
- Henos
Stars can last for millions to billons of years. It depends on how big they are.
Which season marks the transition from warm weather to cold weather and is known for harvest festivals and colorful leaves?
Fall or Autumn
What is the Sun made of?
- Valencia & Anthony
The Sun is made mostly of hot, glowing gases. The main gas is called hydrogen. There's also another gas called helium.
What is solar energy?
- Gianna
Solar energy is the power we get from the Sun.
In the term "photovatic cell" what does the prefix "photo" mean?
- Eyoel
light
How do stars form?
- Juliana
The first stage in the life cycle of a star is when a big cloud of gas and dust called a "molecular cloud" starts to come together.
Why do the north and south poles skip seasons (for example going from summer straight to winter).
- Jaylen
At the poles, the change from summer to winter happens quickly, so they don't have a separate season called fall in between.
It's like going from hot to cold without much time in between.
What happens when a star becomes a red giant?
- Yasmin
It will become a planetary nebula or it will go supernova.
(As long as they say one of the answers above it counts.)
How do we collect solar energy?
We collect solar energy using special devices called solar panels.
What is light's purpose?
- Hiwot
- a form of energy
- helps us see from the darkness
- helps plants grow
- keeps us warm
A red star is hotter than a blue star?
- Charlotte
False. A blue star is hotter.
True or False
Every place on Earth has four seasons.
- Daniel
False
The photosphere refers to the Sun's __________.
- Musie
Surface
Where is solar energy most abundant?
Solar energy is most abundant in places with lots of sunlight.
Why does white clothing reflect all colors?
- Rama
White clothing appears to reflect all colors because it reflects most of the light that shines on it.
True or False
The Sun will become a Red Star before it explodes.
- Caelin
True
Which season is associated with new beginnings, blooming flowers, and the return of many animals from their winter hibernation?
Spring
What will happen when our Sun explodes?
- Casyn
When the Sun explodes, it will become a planetary nebula.
How long does it take solar energy to reach Earth?
Solar energy takes about 8 minutes and 20 seconds to travel from the Sun to Earth.
Why is the sky blue?
- Blen
The sky looks blue because of something called scattering.
What is a supernova?
A supernova is a gigantic explosion that happens when a big star runs out of fuel.
What causes the change of seasons on Earth?
The change of seasons on Earth is caused by the tilt of the Earth on its axis as it revolves around the Sun.