Level 17 Level 19
Level 18

Astronomical Units - REVERSED

4 words 0 ignored

Ready to learn       Ready to review

Ignore words

Check the boxes below to ignore/unignore words, then click save at the bottom. Ignored words will never appear in any learning session.

All None

The distance between the Earth and the Sun (150 million km) is known as
1 Astronomical Unit
The mass of the Sun equals
1 Solar mass
9.5 trillion kilometers
1 light year
3.26 light-years
1 parsec