Cat. 1
What is our sun?
A. A planet that gives off light
B. A average star at the center of our solar system
C. A ball of ice and rock
D. The largest star in the universe
How big is our sun?
A. 5 times smaller than earth
B. 20 times large than earth
C. the same size as earth
D. 100 times large than earth.
How long does a star usually live?
A. A few million years
B. About 8-10 billion years for all stars
C. Forever, stars never die
D. It depends on the star's size and mass
Why does our sun seem so special compared to other stars?
A. It is the hottest star we can see
B. It is the biggest star in the galaxy
C. It is made of different materials than other stars
D. It is the closest star to Earth
What is our sun's surface temperature?
A. About 10,000°F
B. About 1,000,000°F
C. About 1,000°F
D. About 100,000°F
Why does the sun rule our lives?
A. It provides the light and energy that supports life on Earth
B. It creates gravity that holds the moon in place
C. It controls the weather on other planets
D. It is the largest object in the universe
What is the common myth about our sun, and what is the reality?
A. Myth: The sun is the oldest star; Reality: It is actually young
B. Myth: The sun is cold; Reality: It is extremely hot
C. Myth: The sun is small; Reality: It is actually huge
D. Myth: The sun is unique; Reality: It is an average star like billions of others
What does a star's color tell us?
A. How big the star is and its age
B. How far away the star is from Earth
C. The distance from other planets
D. How hot the star and how old it is as well
What does Earth's distance from the sun create?
A. Our days, seasons, and years
B. Very short days and nights
C. Constant darkness
D. Extreme cold temperatures year-round
What is the name of the hottest star in our solar system?
A. Wolf-Rayet, it is 35 times hotter than our sun
B. Betelgeuse; it is ten times hotter
C. Proxima Centauri; it is slightly hotter
D. Sirius; it is about twice as hot
Why does the sun appear to be so bright from Earth?
A. Because it is much closer to Earth than other stars
B. Because it is the largest star
C. Because it is the hottest star
D. Because Earth's atmosphere magnifies its light
What is a multi-star system, and how would Earth be different if it were in one?
A. A system with multiple moons; Earth would have stronger tides
B. A system with many planets; Earth would have more neighbors
C. A system with no stars; Earth would be completely dark
D. A system with two or more stars; Earth might have multiple sunrises and sunsets or unstable temperatures
What is the temperature of the coldest stars?
A. round 4,000°F
B. Around 5,000°F
C. Around 206 °F
D. Around 1,000°F
How old is our sun?
A. About 13.8 billion years old
B. About 1 billion years old
C. About 4.5 billion years old
D. About 4.6 million years old