Lesson · Grade 6 · Science
The excretory system: how the kidneys clean the blood
- Grade 6
- Science
- 1 min 11 s
- British Columbia
- BC6-SC-01
A labelled front view of the body builds up step by step: blood carrying wastes flows down the big artery into each kidney, where the wastes and extra water are filtered out, and the cleaned blood leaves through a vein. The wastes and water become urine, which flows down the ureters, fills the stretchy bladder and leaves through the urethra, and the video ends on the recap "Kidneys clean blood, the bladder stores urine".
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In one sentence
The question this lesson answers
How does your body keep your blood clean?
As your body works, it makes wastes that end up in your blood.
Transcript
What the lesson says
How does your body keep your blood clean?
As your body works, it makes wastes that end up in your blood.
Most people have two bean-shaped kidneys, one on each side of the spine.
An artery brings blood, with its wastes, into each kidney.
The kidneys filter the wastes and extra water out of the blood.
The cleaned blood leaves each kidney through a vein.
The wastes and water form a liquid called urine.
From each kidney, urine flows down a thin tube called a ureter.
Urine collects in the bladder, a stretchy bag that stores it.
When you use the toilet, urine leaves your body through a tube called the urethra.
Your kidneys, ureters, bladder and urethra are all part of your excretory system.
Your kidneys keep cleaning your blood, day and night.
Your kidneys clean your blood, and your bladder stores the urine they make.
Curriculum
Where this fits
The outcomes and strands follow the British Columbia curriculum.
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