Science 8 - 1st Mid Test Exercise

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Across
  1. 2. Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide.
  2. 4. A diet containing all nutrients in the correct proportions called… diet.
  3. 10. The location of immovable joints.
  4. 11. Part of blood that fights disease.
  5. 14. The main organ of the circulatory system, a powerful pump.
  6. 16. The scientific name for the windpipe.
  7. 18. After the trachea, air travels through this.
  8. 19. Nutrition needed for energy production.
  9. 20. The largest organ of the respiratory system.
  10. 21. Substance that is needed for strong bones.
  11. 23. The process of breathing in.
  12. 24. An idea or theory that answers a scientific question.
  13. 25. Intestinal walls have … tissue.
  14. 26. The consequence if we consume too much salty food is… blood pressure.
  15. 28. Substance in tobacco smoke that can cause lung cancer.
  16. 30. Component of blood which is responsible for helping to stop bleeding.
  17. 31. The type of muscle found only in the heart.
  18. 34. Component of a balanced diet which is responsible for aiding digestion.
  19. 35. The muscular wall that controls breathing by moving up and down.
  20. 37. The consequence if we consume lack of fibre.
  21. 38. The body uses this to carry nutrients and waste.
Down
  1. 1. Part of blood that carries hormones and nutrients.
  2. 3. Substance that is inside the nuts and greasy food.
  3. 4. The process of inhaling and exhaling.
  4. 5. The ... system provides attachment surfaces for muscles.
  5. 6. Movement of gas from an area of high concentration to low concentration.
  6. 7. Another name for white blood cells.
  7. 8. Another name for red blood cells.
  8. 9. Condition when a person has a deficiency in vitamin C.
  9. 12. A mineral vital for carrying oxygen in hemoglobin; its deficiency causes anemia.
  10. 13. Membrane layer which covers the lungs.
  11. 15. The process of converting the energy in food into energy the body can use.
  12. 17. Substance in tobacco smoke that is addictive.
  13. 22. Food that is a good source for protein.
  14. 25. One of the location where the joint that has the greatest range of motion is located.
  15. 27. Nutrition needed for growth and repair.
  16. 29. Condition when bones do not have enough calcium.
  17. 32. The consequence if we consume too much fatty food.
  18. 33. The place where two or more bones meet.
  19. 36. A type of joint found in the knee and elbow, allowing movement in one direction.