Worksheet Solutions: Understanding Our Body | Science Olympiad for Class 1 PDF Download

Multiple Choice Questions (MCQs)

Q1: Which part of the body helps us smell a flower?

a) Ears
b) Nose
c) Mouth
d) Legs
Ans: b) Nose
Solution: The nose helps us smell things like flowers, food, and fresh air.

Parts of Body

Q2: What do we use to hear music?
a) Eyes
b) Ears
c) Nose
d) Hands

Ans: b) Ears
Solution: The ears help us hear sounds like music, talking, and animals.

Q3: Which part of the body helps us run and jump?
a) Hands
b) Ears
c) Legs
d) Hair

Ans: c) Legs
Solution: Our legs help us stand, walk, run, jump, and move around.

Legs help us to walk and jump

Q4: What do we use to lift and hold things?
a) Ears
b) Mouth
c) Hands
d) Feet
Ans: c) Hands
Solution: We use our hands to pick up, hold, and carry things like toys and books.

Q5: What do our eyes help us do?
a) Smell things
b) See things
c) Taste food
d) Hear sounds

Ans: b) See things
Solution: Our eyes help us see everything around us, like colors, shapes, and people.

Fill in the Blanks

Q.1. The organ that pumps blood in our body is called the ____.
Answer: Heart
Solution: The heart is the muscular organ responsible for pumping blood throughout the body.

Q.2. We breathe in air through our ____.
Answer: Nose
Solution: The nose is the primary organ used for breathing and smelling.

Nose

Q.3. The ____ helps us to hear sounds.
Answer: Ear
Solution: The ear is the organ responsible for detecting sound.

Q.4. Our body is made up of many small building blocks called ____.
Answer: Cells
Solution: Cells are the basic units of life that make up all living organisms.

Q.5. The ____ is used to hold and grip objects.
Answer: Hand
Solution: The hand is made up of fingers and helps us grasp and hold items.

Hands help us to eat 

True or False

Q.1. The tongue helps us to see.
Answer: False
Solution: The tongue is used for tasting, not seeing.

Q.2. We have two eyes.
Answer: True
Solution: Humans typically have two eyes used for vision.

Q.3. Our lungs are responsible for pumping blood.
Answer: False
Solution: The heart pumps blood; lungs are involved in gas exchange.

Lungs

Q.4. The skin is the largest organ of our body.
Answer: True
Solution: The skin covers the entire body and is the largest organ.

Q.5. The brain is responsible for our thinking and memory.
Answer: True
Solution: The brain controls thoughts, memory, and many functions of the body.

Match the Following

Ans:
1. Eyes → c) Help us see the world
2. Legs → d) Help us move and run
3. Hands → e) Help us lift and carry things
4. Ears → a) Help us hear sounds
5. Mouth → b) Help us eat and talk

Solution: 

• Eyes → c) Help us see the world 
  The eyes are the organs responsible for vision. They allow us to see everything around us, from colors to shapes and movements, enabling us to navigate the world effectively.
• Legs → d) Help us move and run
  Solution: The legs are crucial for locomotion. They enable us to walk, run, jump, and perform various physical activities. The muscles in the legs work together to provide mobility.
• Hands → e) Help us lift and carry things
  Solution: Hands are essential for manipulation and interaction with objects. They have the dexterity to grip, lift, and carry items, making them vital for daily tasks such as writing, eating, and playing.
• Ears → a) Help us hear sounds
  Solution: The ears are the sensory organs for hearing. They detect sound waves and send signals to the brain, allowing us to perceive and identify different sounds in our environment.
• Mouth → b) Help us eat and talk
  Solution: The mouth plays a dual role. It is used for eating, where food is ingested and broken down for digestion. Additionally, the mouth is necessary for speech, allowing us to communicate verbally with others.