Across
- 2. The name for our neighbouring galaxy. It will collide with our galaxy in approx 4 billion years
- 8. The closest planet to the Sun
- 9. An explosion caused by matter collapsing in on itself. It will outshine galaxies for many days.
- 11. Main sequence stage is the most stable because the forces are _______
- 12. This word means 'getting larger' and is used to describe when the shape of the moon is becoming larger
- 14. When the northern hemisphere is tilted away from the Sun, we call this ______
- 18. An object so dense that even light cannot escape its gravitational pull. There is one at the centre of our galaxy.
- 22. This is the name for when we see a slither of the moon
- 23. A planet famous for its Great Red Spot
- 24. The next stage for our Sun. It will engulf Mercury and Venus.
- 27. Mercury and Venus have orbits that are _____ than Earth's
- 28. In summer it is warmer because the Sun's light is spread over a smaller ______
- 29. The name of the force that holds all the planets in orbit around the Sun
- 34. When the moon is between the Sun and Earth the phase is called _____ ______
- 35. The process of releasing energy from fusing two small nuclei together to make a larger one
- 36. A famous satellite that orbits the Earth which has taken many pictures and allowed us to study the universe
- 37. In winter it is colder because the Sun's light is spread over a ____ area and it is therefore less intense
- 38. A planet known as 'The Red Planet'
- 40. Eclipses do not happen all of the time because the moon's orbit is _________
- 42. Stars are mainly made from this element
- 44. The name of another star in the night sky. Also the name of a Harry Potter character who killed Neville Longbottom's parents
Down
- 1. This happens when the moon passes behind the Earth and into its shadow ______ ________
- 3. The name of our spiral galaxy
- 4. The outer planets are known as the gas ______ because of their size and what they are made from
- 5. The dense core that is left after layers of the star have drifted away. It will continue to cool.
- 6. When the moon is behind the Earth, opposite the Sun we call this phase ____ ____
- 7. The name for the pathway planets take around the Sun
- 8. A measure of how much material something is made from. Measured in kg
- 10. A measurement of distance in space because it is so vast
- 13. A theoretical star that we have not found to exist yet because the time it takes to make one is longer than the age of the universe
- 15. A planet known as Earth's 'sister planet'
- 16. A 'planet' famously demoted to dwarf planet status
- 17. The 4 inner planets are known as the ____ planets because of the material they are made from
- 19. This planet is furthest from the Sun
- 20. When the Earth orbits the Sun once, we call this one ______
- 21. This is found between Mars and Jupiter
- 25. This is the name for when we see almost all of the moon
- 26. Once the star has been created it enters the ______ stage before it becomes a Main Sequence Star
- 27. A planet famous for its rings
- 30. This word means 'getting smaller' and is used to describe when the shape of the moon is becoming smaller
- 31. This happens when the moon passes in between the Sun and the Earth _____ ________
- 32. A force. Measured in N. A measure of how much force with which something is pulled to Earth.
- 33. When the moon orbits the Earth once, this is called one _______
- 34. Where stars are created in the clouds of dust and gas
- 39. When the northern hemisphere is tilted towards the Sun, we call this _____
- 41. This region of the Earth doesn't experience seasons in the same way as the hemispheres
- 43. The name of a famous star in our night sky (the brightest in fact). Also the name of Harry Potter's god father