Unit 2: Understanding Science
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What are the steps of the scientific method?
• Observation • Hypothesis • Experiment • Conclusion
What are the components of blood?
• Water/Plasma • RBC’s • WBC’s • Platelets • Nutrients
Blood circulation components
• The heart • The lungs • Blood • Blood vessels
What do platelets do?
They help blood clot around wounds
What are the two types of blood vessels?
Arteries and veins
What do the veins do?
Pumps deoxygenated blood to the heart
What do the arteries do?
Brings deoxygenated blood to the heart to be oxygenated again
What is the heart made of?
Muscles and tissues
How many champers does the heart have?
4
What does the acronym LORD stand for?
Left Oxygenated Right Deoxygenated
What do platelets do?
They help blood clot around wounds
What do red blood cells do?
Carries oxygen around
What do white blood cells do?
It makes up the human immune system that fights against different pathogens.
What kind of shape do red blood cells have?
Disc like structure
What kind of shape do white blood cells have?
Irregular shape
What is the function of the heart?
To pump blood to different parts of the body
What is the function of the heart?
To pump blood to different parts of the body
What is the function of the heart?
To pump blood to different parts of the body
What is the cycle of blood circulation?
Heart » Lungs » Heart » Body