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Circulatory System treasure hunt

Delve into the fascinating world of the human circulatory system with our interactive GPS scavenger hunts. Playfully discover how your heart works, follow the route of red blood cells and learn about the vital function of our circulatory system.

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Circulatory System treasure hunt - GPS treasure hunt Biology

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Fun in het Noorderplantsoen

Groningen, Groningen, Netherlands
Doe deze speurtocht en ontdek het Noorderplantsoen in Groningen. Succes!
Biologie 18+ year
35 min 1,0 km 11 2

Featured this week: example questions for Circulatory System

New example questions from the library every Monday. Updated on 5 October 2026.

What does your heart do when you sleep?
It keeps knocking It stops knocking It is going to sing It gets bigger
What happens if you get a cut?
Blood is coming out Milk comes out Air comes out Nothing comes out
What flows through your veins?
Blood Water Milk Juice
How do you take the best care of your heart?
By being kind to yourself By never moving By eating only sweets By crying a lot
How can you feel your heartbeat?
By touching your wrist By keeping your ears closed By closing your eyes By sneezing
What makes your blood sweet?
Sugar out of your food Sea salt Candy Soap bubbles
What is special about your heart muscle?
He never gets tired He is green He is growing every day He can talk
What is a heart rhythm?
How fast your heart beats A song about the heart A dance A game
Create a circulatory system treasure hunt for Ages 5-6
Approximately how much blood is in your body?
5 litres 1 glass 20 litres 1 spoon
What is the engine of your body?
Your heart Your feet Your hands Your eyes
What is the most important task of your blood?
Bringing oxygen Keeping you warm Making noise Making you grow
What should you eat for a healthy heart?
Fruit and vegetables Candy only Chips only Biscuits only
What happens when your heart beats?
It pumps blood away It makes noise It gets bigger It is going to move
What protects your heart?
Your ribs Your arms Your legs Your ears
What colour is your blood?
Red Blue Green Yellow
What colour is blood?
Red Blue Green Yellow
Create a circulatory system treasure hunt for Ages 7-8
What makes your blood sticky when you have a wound?
Coagulation Evaporation Freeze Melt
Which blood group can all people receive?
O A B C
What brings nutrients to your cells?
The blood The sky The water The muscles
Which part of your heart receives oxygenated blood from the lungs?
Left atrium Right bosom Left room Judge's chamber
Which blood vessels return blood to the heart?
Veins Arteries Capillaries Refill
How long do red blood cells live on average?
120 days 1 day 1 year 10 years
What is the name of the largest artery in your body?
Aorta Main artery Major blood road Giant Vein
What are the blood vessels called that carry blood away from the heart?
Arteries Veins Capillaries Blood tubes
Create a circulatory system treasure hunt for Ages 9-10
What is the great circulatory system?
From heart to body and back From heart to lungs and back From lungs to liver From head to feet
What can affect your heart rate?
Sport, emotions and temperature Sports only Only what you eat Just how much you sleep
Which substance allows blood to clot?
Platelets Red blood cells White blood cells Blood plasma
What is the name of the heart muscle?
Myocardium Heart tissue Pericardium Endocard
What is the name of the thin layer enveloping the heart?
Heart pouch Heart muscle Pericardium Heart peel
Where in your body do you find the most capillaries?
In all organs Only in your brain Only in your muscles Only in your heart
Approximately how big is a child's heart?
As big as a fist As big as a tennis ball As big as a football As big as a ping-pong ball
Which blood vessels are thinnest?
Capillaries Arteries Veins Main veins
Create a circulatory system treasure hunt for Ages 11-12
Where in the body do you find the greatest concentration of capillaries?
In the lungs In the brain In the kidneys In the muscles
Which factor does NOT increase heart rate?
Sleep Sports Stress Fever
What is arteriosclerosis?
Hardening of the arteries Vein dilation Inflammation of the heart Red blood cell deficiency
Which substance in red blood cells transports oxygen?
Haemoglobin Plasma Fibrinogen Albumin
On average, how many litres of blood does an adult's heart pump around per minute?
5 litres 2 litres 8 litres 12 litres
How many oxygen molecules can one haemoglobin molecule bind?
4 2 6 8
Which substance binds carbon dioxide in the blood?
Haemoglobin Plasma Serum Fibrinogen
What happens to heart rate during exercise?
This gets higher This gets lower This one remains the same This becomes irregular
Create a circulatory system treasure hunt for Ages 13-14
Which hormone stimulates the production of red blood cells?
Erythropoietin Insulin Adrenaline Thyroxine
What is the diameter of a capillary?
5-10 micrometers 50-100 micrometers 1-2 millimeters 0.5-1 millimeter
What is the main component of blood plasma?
Water Proteins Glucose Salt
Which component of blood is responsible for blood clotting?
Platelets Red blood cells White blood cells Blood plasma
What happens during systole?
The ventricles contract The ventricles relax The atria fill with blood All heart valves close
Which blood vessels have valves to prevent backflow?
Veins Arteries Capillaries All blood vessels
What is the part of the cardiac conduction system that regulates the heart rhythm called?
Sinoatrial node Cardiac nerve Vagus nerve Cardiac plexus
Which substance do red blood cells mainly transport?
Oxygen Glucose Proteins Hormones
Create a circulatory system treasure hunt for Ages 15-16
What happens to heart rate during inspiration?
This increases slightly This decreases slightly This remains the same This becomes irregular
Which blood vessels have the thickest muscle layer in relation to their diameter?
Arterioles Aorta Vena cava Capillaries
Which blood value gives information about the average size of red blood cells?
MCV (Mean Corpuscular Volume) MCH (Mean Corpuscular Hemoglobin) MCHC (Mean Corpuscular Hemoglobin Concentration) RDW (Red Cell Distribution Width)
What is the main function of the lymphatic system in relation to the circulatory system?
Return of interstitial fluid to the blood Transport of oxygen Production of red blood cells Regulation of blood pressure
Which factor mainly determines venous return to the heart?
Skeletal muscle pumps and respiration Cardiac contraction Arterial pressure Osmotic pressure
On average, how long do red blood cells live?
120 days 30 days 365 days 60 days
What blood group antigens are present in blood group AB?
Both A and B antigens A antigen only B antigen only No antigens
What structure connects the right and left ventricles in the embryonic heart?
Foramen ovale Ductus arteriosus Ductus venosus Septum primum
Create a circulatory system treasure hunt for Ages 17-18
What is the normal pH of arterial blood?
7,4 7,0 6,8 8,2
What is the main function of venous valves?
Preventing backflow of blood Regulating blood pressure Filtration of blood cells Producing hormones
Which cell is responsible for the immune response in the blood?
White blood cells Red blood cells Platelets Plasma cells
What happens during diastole of the heart?
The heart relaxes and fills with blood Heart contracts and pumps blood away The heart valves all close Heart temporarily stops beating
Which blood cell is the largest?
Monocyte Neutrophil Lymphocyte Eosinophilic
Which substance regulates the production of red blood cells in the kidneys?
Erythropoietin Renin Aldosterone ADH
Which substance stimulates the production of red blood cells?
Erythropoietin Insulin Thyroxine Cortisol
What is the maximum amount of oxygen that one gram of haemoglobin can bind?
1.34 ml 2.5 ml 0.8 ml 3.2 ml
Create a circulatory system treasure hunt for Ages 18+

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Frequently asked questions

A Circulatory System scavenger hunt is a GPS-guided outdoor activity with quiz questions about Circulatory System, part of the theme Biology. You walk a route past various locations and answer fun questions along the way.

There are 2044 questions available about Circulatory System: 2044 multiple choice questions, 0 open questions and 0 assignments. The category Biology has more than 34844 questions in total.

There are Circulatory System questions for all ages: from 3-5 years (toddlers) to 20+ (adults). The questions are automatically adapted to the chosen level.

Go to oppatt.io, create a free account, choose the theme Biology and select Circulatory System as the topic. Choose an age category and location, and you'll have a complete scavenger hunt within a minute.