Stars and Galaxies

Front

What happens to stars as we move to the left on the Hertzsprung-Russell diagram?

Back

Stars get hotter.

Front

What does the blue and red line in the diagram represent?

Back

Earth's axis.

Front

What type of tide occurs during a neap tide?

Back

A neap tide occurs when the sun and moon are at right angles to each other, resulting in lower high tides and higher low tides.

Front

What is a comet?

Back

A mass of rock, dust, and ice that partially vaporizes when it passes near the sun.

Front

What is a supernova?

Back

The explosion that occurs at the death of a massive star.

Front

What is the main difference between a comet and an asteroid?

Back

Comets are made of ice and dust, while asteroids are primarily made of rock and metal.

Front

What is the Milky Way?

Back

The galaxy that contains our solar system.

Front

What is a galaxy?

Back

A massive system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.

Front

What is a black hole?

Back

A region of space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What is the life cycle of a star?

Back

A star's life cycle includes stages such as nebula, main sequence, red giant, supernova, and either neutron star or black hole.