Page 44 - ACTIVE SCIENCE 4 TOC

Practice Time

A. Tick the correct option.

1. It is an internal organ.
a. heart b. mouth

c. nose d. eyes

2. It carries blood to all parts of the body from the heart.
a. heart b. artery

c. vein d. urethra
3. It is a red-coloured fluid.

a. blood vessels b. blood
c. kidney d. urine

4. The function of the excretory system is the removal of _____________.

a. waste b. blood
c. saliva d. water

5. Urine passes out from the _____________.

a. urethra b. urinary bladder
c. kidneys d. heart

6. Kidneys are _____________ shaped.
a. pencil b. bean

c. pea d. square

B. Fill in the blanks.

1. The _____________ pumps blood to all parts of the body.
2. Urine flows from the _____________.

3. _____________ carry deoxygenated blood.

4. Urine gets stored in the _____________.
5. _____________ help in the exchange of gases, water and nutrients between the
blood and tissues.

C. Match the following:

1. Kidneys a. red fluid

2. Blood b. bean-shaped

3. Heart c. a pair of tubes

4. Ureters d. located between the lungs

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Active Science-4