The dark core in the center of a sunspot is called the umbra.
The umbra of a sunspot is surrounded by the penumbra.
The penumbra of a sunspot is surrounded by the umbra.

2) Galileo was one of the first people to use a telescope to observe sunspots.

True
False

3) Sunspots at the equator and sunspots at the poles of the Sun do not take the same time to rotate once around the Sun.

True
False

4) Compared to other stars, our Sun is ...

a very small star indeed
just another average star in terms of size and temperature
a very large star indeed

5) Pick the true statement:

During a solar eclipse, the photosphere is blocked by the moon, allowing us to see the chromosphere.
During a solar eclipse, the chromosphere is blocked by the moon, allowing us to see the photosphere.

6) Which statement is correct ?

Sunspots appear in cycles of 11 days.
Sunspots appear in cycles of 11 weeks.
Sunspots appear in cycles of 11 months.
Sunspots appear in cycles of 11 years.

7) Were John Flamsteed and Domenico Cassini the first people to calculate the distance to the Sun?

Yes
No

8) Pick the true statement:

The Sun consists mostly of helium.
The Sun consists only of hydrogen.
Sunspots appear all over the Sun, not just in one small area.

9) How long will the Sun continue to shine, based on the fuel it has available?

7 billion years
7 million years
700 billion, billion years

10) Pick the true statement:

Sunspots at the equator of the Sun rotate once around the Sun in around 25 hours.
Sunspots at the equator of the Sun rotate once around the Sun in around 25 minutes.
Sunspots at the equator of the Sun rotate once around the Sun in around 25 days.