Across
- 2. anything that has mass and takes up space
- 6. the ability to make things move or change
- 8. a moon phase that looks like a full circle from Earth (two words, no spaces)
- 11. to pull objects toward one another
- 13. the number of individuals with each trait in a population
- 14. a rocky sphere that travels around a planet
- 15. a push or a pull that can change the motion of an object
- 17. the amount of matter that makes up an object
- 19. a random change to a gene that sometimes results in a new trait
- 20. a self-contained unit on an aircraft, spacecraft, vehicle, or vessel that can be detached for a particular function
- 24. a moon phase that looks like less than half a circle from Earth (two words, no spaces)
- 28. something that connects opposite magnetic poles and represents the strength and direction of the field (three words, no spaces)
- 29. a machine that can convert kinetic energy into electrical energy
- 31. one of the two opposite ends of a magnet (two words, no spaces)
- 32. a set of interacting parts forming a complex whole
- 33. to shine light on an object and make it visible
- 36. a push or a pull that can change the motion of an object
- 37. the star that is the main source of light at the center of our solar system
- 38. a type of molecule that performs important functions inside organisms (two words, no spaces)
- 39. having died out completely and no longer alive anywhere on Earth
- 42. the sun, the planets that orbit the sun, and other objects that orbit the sun (two words, no spaces)
- 43. a moon phase in which the Moon is not visible from Earth (two words, no spaces)
- 44. the border between light and dark on the Moon
- 45. everything (living and nonliving) that surrounds an organism
- 46. a way of hiding by looking the same as the background
- 47. any difference in traits between individual organisms
- 48. the energy that an object has because it is moving (two words, no spaces)
- 49. an instruction for making a protein molecule
- 50. the nearly circular path a smaller object travels around a larger object
Down
- 1. a moon phase that looks like a half-circle from Earth (two words, no spaces)
- 3. the ability to make things move or change
- 4. to move from one object to another or one place to another
- 5. a group of individuals born and living at about the same time
- 6. to apply a force
- 7. the energy that is stored in an object or system (two words, no spaces)
- 9. a type of molecule that genes and chromosomes are made of (two words, no spaces)
- 10. the space around a magnet in which magnetic forces can act on objects (two words, no spaces)
- 12. a longer piece of DNA that contains many genes
- 16. a force between an object and the surface it is moving over
- 18. how fast an object is moving, or distance over time
- 21. a characteristic that all members of a species have
- 22. a type of magnet in which the magnetic field is produced by an electric current
- 23. speed in a particular direction
- 25. the moment when two objects hit each other
- 26. the amount of time it takes for a planet to complete one orbit around a star or stars
- 27. to push objects away from each other
- 30. a moon phase that looks like more than half a circle from Earth (two words, no spaces)
- 34. when the Moon is completely dark (two words, no spaces)
- 35. when a huge number of species on Earth die out completely around the same time (two words, no spaces)
- 40. a group of the same type of organism living in the same area
- 41. a related organism from a previous generation
- 46. to change from one type of energy to another