Across
- 4. holes on the bottom of leaves that let them release water into the air
- 7. when the boy pollen joins the girl egg
- 8. the system that pumps oxygen around our bodies
- 11. the flat light parts that help birds fly and stay warm
- 13. a type of animal with gills as a baby and lungs as an adult
- 14. a living thing
- 15. still not yet completed or finished being made
- 19. a support structure outside the body
- 21. a type of animal with an exoskeleton
- 22. the part of a plant that forms the seed
- 23. the bones that go down the back of your body
- 24. a hairy animal that is warm blooded and gives milk to its babies
- 25. the process of making more of yourself
- 29. when leaves release water into the air
- 34. a simple organism with stinging tentacles
- 35. a tool that lets us see very small things
- 36. the control center of the cell
- 37. the small part of a root cell that absorbs water and nutrients
- 38. a simple organism with spiny or bumpy skin
- 39. similar cells working together to do a job
- 42. DNA is wound up into this structure
- 43. a type of animal with a backbone
- 44. to make more of yourself
- 46. a cold blooded vertebrate with scaly skin and soft eggs
- 50. part of a plant that's underground and thin and spread out
- 51. an animal whose temperature matches its environment
- 52. the process of when a seed starts to grow into a plant
- 53. I have this when I’m fully grown and can reproduce myself
- 54. squids will use this to catch food
Down
- 1. babies
- 2. the system that works with the skeletal system to help us move
- 3. a gas in the air that plants need to make sugar
- 5. to use oxygen to get energy from sugar
- 6. the system that works with the muscular system to help us move
- 9. an ocean animal with a hard shell and a soft body
- 10. one thick fat root
- 11. separating things by how big or small they are
- 12. the process of turning water and CO2 into sugar
- 16. the system that gets rid of or changes waste
- 17. a very simple animal that filters water through tiny holes
- 18. an animal that creates its own heat
- 20. plants make this gas as waste but we use it to get energy from sugar
- 26. many organs working together to perform a life function
- 27. how something is built or put together
- 28. many tissues working together to make something to help us live
- 30. an animal with no backbone
- 31. the system that breaks down food into a form that we can use
- 32. this substance is inside chloroplasts and makes sugars
- 33. when pollen touches the stigma of a plant
- 40. mushrooms and nonseed plants reproduce using these
- 41. it keeps plant cells safe but animal cells don't have one
- 45. to divide things into groups
- 47. something I get from my parents’ DNA is this
- 48. the smallest unit of a living thing
- 49. a system that sends and receives messages to and from the body