Worksheet Solution: Living & Non Living Things | Science Olympiad for Class 1 PDF Download

Multiple Choice Questions (MCQs)

Q1: Which of the following is a living thing?
(a) Chair
(b) Dog
(c) Rock
(d) Toy
Ans: b) Dog
Solution: A dog is a living thing because it can breathe, grow, and reproduce. Chairs, rocks, and toys are non-living as they cannot perform these functions.

Living and Non Living Things

Q2: What do plants need to make their food?
(a) Water and Fire
(b) Sunlight and Food
(c) Sunlight and water
(d) Food and air
Ans: (c) Sunlight and water

Solution: Plants use sunlight, water, and air (carbon dioxide) to make their food through photosynthesis. Options (a), (b) and (d) are incorrect as plants don’t need fire or food to make their own food.

Photosynthesis

Q3: How do fish breathe?
(a) Through their nose
(b) Through their skin
(c) Through gills
(d) Through leaves
Ans: c) Through gills
Solution: Fish have gills that extract oxygen from water. Unlike land animals, they don’t have noses or lungs for breathing.

Gills of Fish

Q4: What happens to living things as they grow older?
(a) They become younger
(b) They never grow old
(c) They grow and die
(d) They turn into non-living things
Ans: c) They grow and die
Solution: All living things follow a life cycle where they grow, age, and eventually die. The other options are scientifically incorrect for living organisms.

Q5: What do living things do when the environment changes?
(a) Ignore the changes
(b) Feel the changes and react
(c) Stay the same
(d) Stop moving
Ans: b) Feel the changes and react
Solution: Living things respond to environmental changes like temperature, light, and touch. This ability to respond is a characteristic of life.

Fill in the Blanks

Q1: Living things need __________ to obtain energy, grow, and stay healthy.
Ans: food
Solution: Food provides energy for growth and maintaining the health of living organisms.

Q2: Plants breathe through small openings called __________.
Ans: stomata
Solution: Stomata are tiny pores on leaves that allow gases to move in and out of the plant.

Q3: Animals like birds and fish lay __________ to reproduce.
Ans: eggs

Birds lay eggsSolution: Birds and fish reproduce by laying eggs from which their young hatch.

Q4: Humans grow from __________ into adults.
Ans: babies
Solution: Humans start as babies and grow into adults over time.

Q5: The leaves of a __________  plant close when touched.
Ans: Touch-me-not
Solution: The touch-me-not plant reacts to touch, showing it is a living thing that responds to stimuli.

Touch me not plant

True or False

Q1: New plants grow from seeds.
Answer: True
Solution: Seeds are the starting point of growth for many plants.

Seed to Plants

Q2: Living things do not have a lifespan.
Answer: False
Solution: All living things have a lifespan, which means they live for a certain period before they die.

Q3: Non-living things do not grow or move on their own.
Ans: True
Solution: Non-living things like stones or toys do not grow or move without external force.

Q4: Plants move from one place to another in search of food.
Ans: False
Solution: Plants do not move; they stay rooted in one place and make their food through photosynthesis.

Q5: Living things respond to touch, light, and heat.
Ans: True
Solution: Living things like plants and animals respond to changes in their environment such as touch, light, and heat.

Match the Following

Ans:

1. Fish breathe through - b) Gills
2. Non-living things are divided into - d) Two groups: natural and man-made
3. Plants make their food using - c) Sunlight and water
4. Plants breathe through - a) Stomata
5. Living things grow from - e) Babies to adults

Solution: 

1. Fish breathe through - Gills: Fish use gills to take in oxygen from water.
2. Non-living things are divided into - Natural and man-made: Non-living things can be naturally occurring or human-made.
3. Plants make their food using - Sunlight and water: Plants need sunlight and water for photosynthesis.
4. Plants breathe through - Stomata: Plants have tiny openings called stomata on their leaves to exchange gases.
5. Living things grow from - Babies to adults: Living things, like humans, start life as babies and grow into adults.