Lesson Worksheet: Introduction to the Circulatory System Science • 4th Grade
In this worksheet, we will practice identifying and describing the main parts of the circulatory system, understanding its function, and describing the composition and function of blood.
Q1:
Fill in the blank: The circulatory system carries blood throughout the body. The organ that pumps blood throughout the body is the .
- Adiaphragm
- Bheart
- Cliver
- Dlungs
Q2:
Which of the following is not part of the circulatory system?
- AVeins
- BThe heart
- CThe lungs
- DArteries
Q3:
This picture shows heart muscle tissue under a microscope. What is the tissue made of?
- ABlood
- BOrgans
- CCells
Q4:
Fill in the blank: The heart is made up of .
- Aother organs
- Btissue consisting of cells that have the same function
- Ctissue consisting of cells that have different functions
Q5:
What is a function of blood?
- ATo carry carbon dioxide from the heart to the bladder
- BTo carry oxygen from the lungs to tissues in the body
- CTo carry oxygen from the digestive system to the heart
Q6:
This picture shows the circulatory system. Which label is the heart?
- ALabel 2
- BLabel 3
- CLabel 1
Q7:
Which of the following is not a function of the blood?
- AHelping protect the body from disease
- BHelping keep the body warm
- CTransporting nutrients throughout the body
- DExcreting wastes from the body
Q8:
Which of the following carries oxygen to the rest of the body?
- APlasma
- BWhite blood cells
- CRed blood cells
- DBlood platelets
Q9:
Fill in the blanks: When the heart pumps, it moves blood around the body. This is important because and need to be delivered to the body cells.
- Aoxygen, food
- Bfood, carbon dioxide
- Cwaste products, carbon dioxide
- Doxygen, carbon dioxide
- Efood, waste products
Q10:
What is the function of the circulatory system?
- AIt breaks down food that has been eaten.
- BIt filters waste products out from the blood.
- CIt helps the body to move.
- DIt carries nervous impulses around the body.
- EIt transports nutrients, water and oxygen around the body.
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