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Science Quest

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  • What are the alveoli?
    Tiny air sacs found at the end of each bronchiole.
  • What is the function of the digestive system?
    Processes food and transforms it into nutrients that our body needs.
  • What do veins do?
    Carry blood from the organs to the heart
  • What is the function of the circulatory system?
    transports blood
  • What are the blood vessels?
    Are tubes that circulate the blood. They are arteries, veins and capillaries.
  • Label the layers of the skin (3)
    Epideremis, dermis, hipodermis.
  • Name two tips for the health and hygiene of the excretory system
    Some possible answers
  • Label the parts of the excretory system (4 parts)
    kidneys, ureteres, bladder, urethra
  • Describe the organ of the heart
    It is a hollow organ with four cavities, has muscular walls. Pushesblood to the blood vessels
  • Label the female reproductive system (4 parts)
    uterus, ovaries, vagina, vulva
  • What are the waste substances that our body produce? (3)
    urine, feces, sweat
  • Why is human reproduction sexual?
    Because you need two people of the opposite sex to reproduce
  • Describe some characteristics of the uterus
    hollow organ, muscular walls, expands
  • Name the three steps of breathing.
    Inhalation, Exchange of gases and Exhalation
  • What is the function of the kidneys?
    To filter the blood and collect waste substances.
  • Name two tips for the health and hygiene of the respiratory system
    Some possible answers
  • In your words, explain how our body transforms the food that we eat.
    Teeth grind food, it mixes with digestive juices in the stomach. Nutrients are absorbed by the small intestine walls.
  • What is the purpose of pores?
    To release sweat.
  • Label the parts of the respiratory system (4 parts)
    trachea, lungs, bronchi and diaphragm
  • What is the function of the nervous system?
    Receives signals from the sense organs, interprets the information, generates reactions.
  • Describe the similarities and differences between sweat and urine
    Both are liquids, both are waste substances. Sweat is released through the pores and urine through the urethra.