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6th Grade Science Unit 2

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  • During human nutrition, our bodies take in nutrients, transform them into energy, then excrete toxins and harmful substances.
    true
    false
  • What is this and what does it do?
    Saliva gland. Produces a liquid that wets food and breaks down sugars.
  • Besides oxygen, our body must also take in water.
    True
  • h?
    bladder
  • Which carries blood with oxygen away from the heart and around the body?
    Arteries
  • Without the ______, our blood would not be able to travel around the body.
    heart
  • The circulatory system has 3 main parts: _________, ________ __________, and the ________.
    blood, blood vessels, and the heart
  • During human nutrition, our body takes in nutrients, transforms them, then excretes the waste.
    true
  • It is not necessary to eat a variety of foods to be healthy.
    false
    true
  • An __________ carries ___________ blood to all the cells in the body.
    artery, oxygenated
  • The _____________ system is the body’s gas exchange centre. It brings oxygen into the body and lets carbon dioxide out.
    respiratory
  • Humans are autotrophs, but must take in oxygen to breathe.
    false
    true
  • Between an artery and a vein, there are blood vessels called _______.
    capillaries
  • What is this and what does it do?
    Stomach. Where food is broken down into smaller pieces and mixed with gastric juices.
  • C?
    bronchi
  • The ____________ system breaks down the food we take in. It works with other systems to extract the nutrients and expel undigested waste.
    digestive
  • The ____________ system delivers nutrients and oxygen to all the cells and tissues in the body. It has three main parts: blood, blood vessels and the heart.
    circulatory
  • F?
    Kidneys
  • What carries blood with carbon dioxide back to the heart?
    Veins
  • E?
    bronchiole
  • What is this and what does it do?
    Liver, pancreas, and gallbladder. Where bile and pancreatic fluids are produced and stored.
  • What are the 3 types of blood vessels?
    arteries, capillaries, and veins
  • The _____________ delivers nutrients and oxygen to all the cells and tissues in the body.
    circulatory system
  • i?
    urethra
  • What is this and what does it do?
    Small intestine. Where food is mixed with fluids, broken down into diff erent types of nutrients and where absorption occurs.
  • D?
    diaphragm
  • B?
    trachea
  • Which connects the arteries and veins together?
    Capillaries
  • What is this and what does it do?
    Large intestine. Where water reabsorption occurs.
  • All the body’s _________ carry the deoxygenated blood back to the heart.
    veins
  • Nutrition is not a continuous process.
    false
    true
  • Humans can make their own food, but must take in oxygen to breathe.
    false
  • Apart from oxygen, our body must also take in water, carbohydrates, proteins, fats, vitamins and minerals.
    true
    false
  • The _______ system is closely connected to the excretory system, which eliminates waste and keeps us cool.
    respiratory
  • G?
    ureters
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