1. 1) Brain looks like:
    1.   a sponge
    2.   a soap
    3.   a peanut
  2. 2) Brain weights about:
    1.   2 kilos
    2.   1.5 kilos
    3.   1.3 kilos
  3. 3) When you learn to do something, you create connections between:
    1.   cells and brains
    2.   tissues and brains
    3.   both variants are correct
  4. 4) The main part of your brain is:
    1.   ceberum
    2.   cerebrum
    3.   cerebellum
  5. 5) These two components are important for your brain:
    1.   phosphorus and zinc
    2.   calcium and potassium
    3.   aluminum and potassium