Final challenge: how do our bodies work?
Practica lo que acabas de ver con preguntas interactivas.
Las preguntas de esta práctica
Puedes leerlas antes de empezar, hacerlas en un papel o repasarlas después. Cada una tiene su solución explicada.
- 1 · Review
Several organs working together make…
Like heart + arteries + veins.
- a) a tissue
- b) a cell
- c) a system
- d) a nutrient
Ver la solución
Respuesta: c) a system
A group of organs working together is a system.
- 2 · Match
Match each organ with its system
Use the study aid if you need help.
- Lungs
- Stomach
- Veins
- Kidneys
- a) Circulatory
- b) Digestive
- c) Excretory
- d) Respiratory
Ver la solución
Respuesta: Lungs → Respiratory · Stomach → Digestive · Veins → Circulatory · Kidneys → Excretory
Lungs breathe, the stomach digests, veins carry blood and kidneys clean it.
- 3 · Circulatory system
Which tubes carry blood away from the heart?
A for Away: A for Arteries.
- a) Veins
- b) Arteries
- c) The trachea
- d) The urethra
Ver la solución
Respuesta: b) Arteries
Arteries carry blood away from the heart; veins bring it back.
- 4 · Circulatory system
How many sections does the heart have?
Two atria and two ventricles.
- a) Two
- b) Three
- c) Four
- d) Six
Ver la solución
Respuesta: c) Four
Four: the left and right atria at the top and the left and right ventricles at the bottom.
- 5 · Because or so?
Our heart beats faster when we exercise ___ our muscles need more oxygen.
Is it the reason or the result?
- a) because
- b) so
Ver la solución
Respuesta: a) because
'Our muscles need more oxygen' is the reason, so we use because.
- 6 · Excretory system
Drag the missing organ
The path of the urine.
kidneys → ____ → urethra
Fichas: bladder · stomach · lungs · uterus
Ver la solución
Respuesta: bladder
The kidneys make urine, the bladder stores it and the urethra takes it out.
- 7 · Excretory system
What liquid waste does the skin get rid of?
You notice it after sport on a hot day.
- a) Saliva
- b) Sweat
- c) Blood
- d) Oxygen
Ver la solución
Respuesta: b) Sweat
The skin eliminates sweat, which also cools us down.
- 8 · Why drink water?
Why is it important to drink plenty of water?
Think about sweat and urine.
- a) Because we lose water every day
- b) Because water is a nutrient from the stomach
- c) Because water makes the heart smaller
- d) It is not important
Ver la solución
Respuesta: a) Because we lose water every day
We lose water when we sweat, go to the toilet and breathe out, so we need to drink to replace it.
- 9 · Reproduction
Where does a baby grow before it is born?
It is part of the female reproductive system.
- a) In the ovaries
- b) In the uterus
- c) In the stomach
- d) In the bladder
Ver la solución
Respuesta: b) In the uterus
The baby grows in the uterus for about nine months.
- 10 · Match
Match each organ with what it does
Reproductive system.
- Testicles
- Ovaries
- Vulva
- Penis
- a) An external male organ
- b) Make and store female cells
- c) Make male cells
- d) The external female part
Ver la solución
Respuesta: Testicles → Make male cells · Ovaries → Make and store female cells · Vulva → The external female part · Penis → An external male organ
Testicles and ovaries make the cells that join to start a baby.
- 11 · Which, where or whose?
The stomach is the organ ___ mixes food with juices.
We are talking about a thing.
- a) which
- b) where
- c) whose
Ver la solución
Respuesta: a) which
For things we use which: the organ which mixes food.
- 12 · Which, where or whose?
The lungs are the place ___ oxygen passes into the blood.
We are talking about a place.
- a) which
- b) where
- c) whose
Ver la solución
Respuesta: b) where
For places we use where.
- 13 · Well-being
Your friend has felt sad and worried for many weeks. What is the best thing to do?
Emotional well-being matters.
- a) Ignore it
- b) Tell them to talk to an adult they trust
- c) Tell them to stop playing
- d) Laugh at them
Ver la solución
Respuesta: b) Tell them to talk to an adult they trust
Talking to a trusted adult, like a parent, teacher or doctor, helps people feel better.
- 14 · Well-being
What is a chronic illness?
Think about time.
- a) An illness that lasts a long time
- b) An illness that lasts one day
- c) A broken bone
- d) Feeling hungry
Ver la solución
Respuesta: a) An illness that lasts a long time
A chronic illness continues for a long time, and it can affect how people feel inside too.
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