Across
- 2. Molecular clouds are cold and...
- 3. Molecular clouds are made of gas and...
- 4. To create core molecular clouds needs the effects of...
- 7. Second name of a stars explosion.
- 8. Stars are composed of... and helium held together.
Down
- 1. Atomes fusion which creates energy and makes the atome lose mass.
- 4. Are bigger than solar systems.
- 5. Stars creation first step.
- 6. Nuclear fusion reaction produce heat and...
- 7. The more there is gas and dust the larger get the...