Year 9 - Term 1 & 2 Review

Edit Answers
12345678910111213141516171819202122232425262728293031323334
Across
  1. 4. A chemical messenger released into the bloodstream
  2. 6. A weakened or inactive form of a pathogen used to build immunity
  3. 8. Negatively charged sub-atomic particle orbiting the nucleus
  4. 13. A change in the environment that causes a response
  5. 14. The small gap between neurons where signals are passed chemically
  6. 16. A neutral particle found in the nucleus
  7. 17. Horizontal rows of the Periodic Table
  8. 19. A protein produced by the immune system to fight specific antigens
  9. 20. A hormone that lowers blood glucose levels
  10. 21. The smallest unit of an element
  11. 22. A positively charged particle in the nucleus
  12. 23. The body system that uses hormones to regulate processes
  13. 25. The _______ system uses electrical signals to respond quickly to stimuli
  14. 27. The _________ system uses hormones to control slower body processes
  15. 28. Mr Gendle's favourite musical instrument
  16. 31. A type of single-celled organism; can be harmful or helpful
  17. 32. A non-living infectious particle that reproduces in a host cell
  18. 33. The outermost electron shell of an atom
  19. 34. Ms Clay's favourite sport
Down
  1. 1. The part of a neuron that receives signals from other neurons
  2. 2. The ______ system in your body defends against infections
  3. 3. The body’s response to injury or infection, often causing redness/swelling
  4. 4. The process of maintaining internal balance in the body
  5. 5. An atom that has gained or lost electrons
  6. 7. A substance made from two or more elements chemically bonded
  7. 9. Vertical columns of the Periodic Table
  8. 10. A pure substance made of only one type of atom
  9. 11. The long part of a neuron that carries impulses away from the cell body
  10. 12. The _____ blood cell fights against infection
  11. 15. This is found above each element symbol on the Periodic table (2 words)
  12. 16. A nerve cell that transmits electrical signals
  13. 18. A medicine used to kill or stop the growth of bacteria
  14. 23. A muscle or gland that carries out a response
  15. 24. Formula: _____ ____ = Protons + Neutrons (2 words)
  16. 26. A fast, automatic response to a stimulus is a ______ action
  17. 28. A type of sugar used by cells for energy, regulated by insulin
  18. 29. A structure that detects a stimulus
  19. 30. A microorganism that causes disease