Living and Non-Living Things - skoolon.com - Free Printable

Task: Solve the worksheet on "Living and non-living things"

#### Q1. Fill in the blanks:

a) Insects take in air through _________.
- Answer: Insects take in air through spiracles.
- Explanation: Spiracles are small openings on the surface of an insect's body that allow air to enter and exit, enabling respiration.

b) _________ move in search of food and water.
- Answer: Animals move in search of food and water.
- Explanation: Animals are living organisms that require food and water for survival and often move to find these resources.

c) _________ make their own food.
- Answer: Plants make their own food.
- Explanation: Plants produce their own food through the process of photosynthesis, using sunlight, water, and carbon dioxide.

d) Most plants grow from _________.
- Answer: Most plants grow from seeds.
- Explanation: Seeds are the primary means by which most plants reproduce and grow into new plants.

e) Plants _________ to stimuli.
- Answer: Plants respond to stimuli.
- Explanation: Plants can respond to various stimuli, such as light (phototropism), gravity (geotropism), and touch (thigmotropism).

---

#### Q2. Answer in one word:

a) Anything that causes a response in a living thing.
- Answer: Stimulus
- Explanation: A stimulus is any change in the environment that triggers a response in a living organism.

b) A plant which closes its leaves when touched.
- Answer: Mimosa
- Explanation: The Mimosa plant is known for closing its leaves when touched, demonstrating a response to physical stimulation.

c) The time period for which a living thing lives.
- Answer: Lifespan
- Explanation: The lifespan refers to the duration of time a living organism exists.

d) The part where stomata are present.
- Answer: Leaves
- Explanation: Stomata are tiny pores found primarily on the leaves of plants, used for gas exchange (e.g., taking in CO₂ and releasing O₂).

e) The part through which fish breathe.
- Answer: Gills
- Explanation: Fish use gills to extract oxygen from water for respiration.

---

#### Q3. Tick (√) the true statements and cross (X) the false ones:

a) Animals produce their own food.
- Answer: X (False)
- Explanation: Animals do not produce their own food. They obtain energy by consuming other organisms (plants or animals).

b) Non-living things need air.
- Answer: X (False)
- Explanation: Non-living things do not have biological processes that require air. Air is necessary for living organisms, not non-living things.

c) Plants respond to stimuli.
- Answer: √ (True)
- Explanation: Plants can respond to various stimuli, such as light, gravity, and touch, as seen in phenomena like phototropism and thigmotropism.

d) A sunflower does not show any movement.
- Answer: X (False)
- Explanation: Sunflowers exhibit movement, such as turning their heads to follow the sun (heliotropism) during the day.

---

Final Answers:

#### Q1. Fill in the blanks:
a) Spiracles
b) Animals
c) Plants
d) Seeds
e) Respond

#### Q2. Answer in one word:
a) Stimulus
b) Mimosa
c) Lifespan
d) Leaves
e) Gills

#### Q3. Tick (√) the true statements and cross (X) the false ones:
a) X
b) X
c) √
d) X

---

Boxed Final Answer:

\boxed{
\text{Q1: a) Spiracles, b) Animals, c) Plants, d) Seeds, e) Respond} \\
\text{Q2: a) Stimulus, b) Mimosa, c) Lifespan, d) Leaves, e) Gills} \\
\text{Q3: a) X, b) X, c) √, d) X}
}