I'm doing a crossword puzzle and these are the hints and the amount of letters in ( ). I can't figure out these two and I've looked online and in my science book.

3. The sun and planets formed from a collapsing spinning cloud of gas and dust. (12 letters)
4. They rotate in the same direction and have “ore” cores. (18 letters)

Question

I'm doing a crossword puzzle and these are the hints and the amount of letters in (  ). I can't figure out these two and I've looked online and in my science book.

3. The sun and planets formed from a collapsing spinning cloud of gas and dust. (12 letters)
4. They rotate in the same direction and have “ore” cores. (18 letters)

anonymous · Answer

3. Solar Systems (It would be without a space. However, if spaces are allowed just Solar System)