Primary 5 Systems

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Across
  1. 4. ___________ circuit allows electric current to flow through it.
  2. 5. system that breaks down food into simple substances for easy absorption
  3. 7. the cell membrane controls the substances that _______ or leaves the cells
  4. 10. system where the blood transport oxygen, digested food and water to all parts of a human body. The blood carries carbon dioxide and waste materials away from different parts of the human body
  5. 11. water-carrying tubes transport __________ and dissolved minerals from the roots to the other parts of the plant
  6. 12. ____________ of electricity do not allow electric current to flow through in the circuit.
Down
  1. 1. the basic unit of life
  2. 2. food-carrying tubes transport food made in the _________ to the other parts of the plant (roots, stem, flowers and fruits)
  3. 3. contains chlorophyll that absorbs light energy for photosynthesis.
  4. 6. Respiration is a process where plants or animals take in oxygen to release energy from digested food.
  5. 8. tiny openings that allow gases such as oxygen and carbon dioxide to enter or leave a plant
  6. 9. photosynthesis is a process where ________ leaves use water and carbon dioxide to make food in the presence of sunlight