Reactions and energy

12345678
Across
  1. 1. A simple sugar made up of carbon, hydrogen and oxygen
  2. 4. A group of atoms bonded together
  3. 6. A watery fluid that fills up the rest of the cell
  4. 7. A reaction where a fuel reacts with oxygen and releases energy
  5. 8. A reaction that transforms light energy into chemical energy
Down
  1. 2. one of the structures within a cell that performs a particular job or function, such as the nucleus or mitochondria
  2. 3. A substance that can burn, releasing energy
  3. 5. a type of organelle within a cell that stores water, nutrients and wastes
  4. 6. A substance made up of two or more types of atom bonded together
  5. 8. A substance formed by a chemical reaction