She should make observations next.
If she doesnt make observations, it would be difficult to form a hypothesis and design an experiment, the result will more likely to be inaccurate too.
Just go down one by one and be careful !! Don't mismatch.
1) Star
2) Solar Eclipse
3) Lunar Eclipse
4) Comet
5) Meteoroid
6) Asteroid
7) Asteroid Belt
8) Terrestrial Planets
9) Moon
10) Sun
Hope this helps!
The enzyme will work as a catalyst and make the chemical reaction happen quicker
