Grade 6 Body Systems worksheet
from Gradelings · Name: ______________________
How to explain it
- The nervous system (brain, spinal cord, nerves) sends fast electrical messages.
- The endocrine system sends slower messages with hormones. The pituitary is the “master gland”.
- The excretory system removes waste: kidneys filter blood into urine, and lungs breathe out carbon dioxide.
- In the reproductive system, a baby develops in the uterus.
Example: Which organs filter wastes out of your blood? Filtering blood is part of the excretory system. The kidneys filter blood and make urine. Answer: the kidneys
Question 1
Which body system does each part belong to? Tap an item, then tap its basket.
Sort into: ⚡ nervous system · 🚰 excretory system · 🧪 endocrine (hormone) system
- 🧠brain
- 💧kidneys
- 🎛️pituitary gland
- 🎈bladder
- 🏃adrenal glands
- 〰️nerves
⚡ nervous system: brain, nerves · 🚰 excretory system: kidneys, bladder · 🧪 endocrine (hormone) system: pituitary gland, adrenal glands
Hint: The nervous system carries fast electrical messages. The excretory system removes wastes. Endocrine glands release hormones into the blood.
Question 2
Which organ stores urine until you go to the washroom?
- the bladder
- the ureter
- the kidney
- the stomach
the bladder
Hint: This stretchy organ fills up like a balloon and then empties.
Question 3
What does the reproductive system make possible?
- keeping your balance
- producing offspring (babies)
- digesting food
- removing waste from the blood
producing offspring (babies)
Hint: To reproduce means to make new living things of the same kind.
Question 4
What do motor neurons do?
- carry messages from the eyes to the brain
- store urine until it leaves the body
- make egg and sperm cells
- carry messages from the brain and spinal cord to the muscles
carry messages from the brain and spinal cord to the muscles
Hint: Motor means having to do with movement. These nerve cells carry instructions out to muscles.
Question 5
Put the path of liquid waste (urine) through the excretory system in order.
- Urine leaves the body through the urethra
- The bladder stores urine
- Ureters carry urine down from the kidneys
- Kidneys filter wastes out of the blood
Kidneys filter wastes out of the blood → Ureters carry urine down from the kidneys → The bladder stores urine → Urine leaves the body through the urethra
Hint: The kidneys clean the blood first. Tubes called ureters lead to the bladder, which stores urine until it leaves through the urethra.
Question 6
Where does a baby develop before it is born?
- the uterus
- the kidneys
- the stomach
- the bladder
the uterus
Hint: The uterus is part of the female reproductive system. A baby grows there for about nine months.
Question 7
What does insulin, a hormone made by the pancreas, help control?
- how fast your hair grows
- how well you hear
- the colour of your eyes
- the amount of sugar in the blood
the amount of sugar in the blood
Hint: Insulin helps your cells take in sugar from the blood to use for energy.
Question 8
Which body system lets you feel a cold breeze on your skin?
🌬️- the excretory system
- the endocrine system
- the reproductive system
- the nervous system
the nervous system
Hint: Sensors in your skin send messages along nerves to your brain.
Question 9
What are hormones?
🧪- cells that fight germs
- chemical messengers carried in the blood
- electrical signals that travel along nerves
- tiny bones inside the ear
chemical messengers carried in the blood
Hint: Glands in the endocrine system release hormones into the blood, which carries them all over the body.
Question 10
Which organs filter wastes out of your blood to make urine?
- heart
- kidneys
- stomach
- bladder
kidneys
Hint: You have two bean-shaped kidneys near your lower back. They clean your blood all day long.
Answer key
- 1. ⚡ nervous system: brain, nerves · 🚰 excretory system: kidneys, bladder · 🧪 endocrine (hormone) system: pituitary gland, adrenal glands
- 2. the bladder
- 3. producing offspring (babies)
- 4. carry messages from the brain and spinal cord to the muscles
- 5. Kidneys filter wastes out of the blood → Ureters carry urine down from the kidneys → The bladder stores urine → Urine leaves the body through the urethra
- 6. the uterus
- 7. the amount of sugar in the blood
- 8. the nervous system
- 9. chemical messengers carried in the blood
- 10. kidneys
Want more than 10 questions?
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