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Why should you never look directly at the sun?
Looking directly at the sun can damage your eyes. It is very bright!
Why did Zoe’s candle appear brighter than Izzy’s candle even though they are the same size?
Zoe and Izzy’s candles are the same size, but Zoe’s candle is much closer to the camera than Izzy’s so it appears larger and brighter.
Why do some stars in the sky look brighter than others?
Stars can appear brighter or dimmer due to a variety of reasons, most commonly their size and their distance from the earth.
What type of star is our sun
Yellow dwarf star
How far is the closest star after our sun
4.25 light years away (Alpha Centauri)
What are stars made out of?
Stars are gigantic balls of exploding gas held together by gravity.
Why does Dr. Jeff’s large flame appear to be the same size as Izzy’s even though it was larger?
When Dr. Jeff moves his large flame far away from the camera, it appears to be the same size as Izzy’s flame, which is much closer.
If two stars were exactly the same size but one was much further from the Earth, what might you observe?
The star further from Earth would appear smaller and less bright.
Is our sun a very young star or a very old star?
Neither it is likely middle aged.
What kid of star is proxima centauri
Red dwarf
What do stars produce?
Stars produce light and heat.
What do you think might happen to Earth’s water if it were closer to the sun? Further away?
Earth’s distance from the sun puts it in a perfect position to support life. Life as we know it needs liquid water. If Earth were closer to the sun our water might dry up. If Earth were further from the sun our water might freeze
What element is most common when a star is first forming
Hydrogen
What type of star is rigel?
Blue super giant
Is proxima centauri in our solar system
no, there is only 1 star in our solar system...the sun
What is a light year and what is it used to measure?
A light year is the distance light travels in a year. Since light can travel at 186,000 miles per second, it can travel very far in one year. Light years are used to measure very large distances in space, such as distances between stars.
What is the closest star to the earth?
the sun
What element is formed early in a stars life from nuclear fusion.
Helium
How many earths could fit into the sun
about 1 million
What galaxy is our solar system in?
Milky Way
How long does it take sunlight to travel to the Earth?
Sunlight travels 93 million miles from the sun to the earth in about 8 minutes.
How many stars are in our solar system?
1-our sun
Explain nuclear fusion
Why hydrogen atoms smash together under extreme temperature and pressure and fuse into helium.
What kind of star is Alpha Centauri
Yellow dwarf star slightly bigger than our sun
How big is the universe
about 93 billion light years