Answers:

Grades K-3

1. Your brain is in the top half of your head, and it controls everything your body does, such as breathing, speaking, and running.
2. Between 1350 and 1400 grams.
3. Headaches can be caused by many different bodily problems, including infections, head trauma, blood vessel disorders, or diseases.
4. During the first few weeks of conception.
5. Most people have 206 bones in their bodies.
6. The heart is a hollow, cone-shaped muscular pump.
7. It allows the body to take in food, and distribute it as nutrition.
8. It is 27 feet long. Yes, it is a lot bigger that you are!

Grades 4-8

1. You have approx. one hundred billion neurons. They help us think, imagine, hear, love, watch, move, create, breathe, etc.
2. Parkinson’s Disease and Schizophrenia.
3. The brain’s incredible complexities.
4. 1) To provide a framework for the body, 2) to protect vital organs, and 3) to allow the body to move.
5. You need exercise, Vitamin A, B, and D, and hormones.
6. Valves, such as the tricuspid valve and pulmonary valve, make sure that blood flows one way.
7. The food gets mixed with gastric juices to help it be digested.
8. To give us energy in our daily lives.

Grades 9-12

1. That means that no other animals’ brain can do as much as ours can. Animals are not nearly as intelligent as us, and even we cannot make computers to be as intelligent as we are.
2. Neurotransmitters are chemical transmissions in the brain that send impulses throughout the brain to let it know what to do.
3. They are the Central Nervous System (CNS) and the Peripheral Nervous System (PNS). The CNS consists of the spinal cord and the brain, and the PNS consists of the autonomic nervous system and the somatic nervous system.
4. It produces red blood cells, white blood cells, and blood platelets. Bone calcium helps blood clot formation, conduction of nerve impulses, and the contraction of muscles.
5. They need exercise, and androgens and estrogens.
6. It gets rid of the carbon dioxide and acquires new oxygen, and then returns to the heart.
7. Thinking of food causes you to salivate, and when you do, enzymes are released that will later help you to digest your food.
8. It emulsifies fats, which helps absorbs fatty acids, cholesterol, and some vitamins.