CBSE Class 6 Science Living And Non Living Worksheet

CBSE Class 6 Science - Living and Non Living

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Q.I. Define the following.

a. Lifespan

b. Excretion

c. Stimulus

d. Organ System

e. Respiration

f. Tissue

g. Organ

h. Cell

g. Oscillatory motion

Q.II. Fill in the blanks.

a. The motion described by a simple pendulum is motion.

b. Green plants are called .

c. Motion of a car on straight road is motion.

d. Motion of needle of sewing machine is motion.

e. Green leaves contain pigment to absorb solar energy.

f. Motion of an object around a fixed point is known as motion.

g. Rotation of earth about its axis is an example of motion.

Q.III. Match the following columns.

Column A                                               Column B

a. Rectilinear motion                             i. Pendulum of clock

b. Periodic motion                                 ii. Earth around sun.

c. Circular and periodic motion             iii. All animals

d. Oscillatory motion                             iv. Swing

e. Heterotrophs                                     v. Car moving on straight road.

Q.IV. Choose the correct option.

1. Fish absorbs oxygen from water through their
a. Lungs
b. Gills
c. Skin
d. Gall bladder

2. Which one animal move away from light?
a. Earthworms
c. Snail
b. Snake
d. Monkey

3. The movement of moon around the earth is an example of
a. Rotational motion
c. Oscillatory motion
b. Periodic motion
d. Translatory motion

4. Change in position of a body with time is called
a. Distance
b. Motion
c. Displacement d. Speed

5. To and fro movement of body is termed as
a. Linear motion
b. Rotational motion .
c. Oscillatory motion
d. Circular motion.

6. What kind of motion a bullet shows when fired from a gun?
a. Rotational motion
b. Translatory motion
c. Circular motion
d. Non-periodic motion.

7. The movement of a spinning top is an example of
a. circular & rotational motion
b. rotational & linear motion
c. oscillatory motion
d. circular & linear motion

Q.V. Name the following:
a. The motion of the Ferris wheel.
b. Two organisms which are made of only one cell.
c. The process through which green plants make their own food.
d. A plant which shows sensitivity to touch.
e. The motion of the vibration of the string of a musical instrument.

Q.VI. Answer the following in not more than 20 words:
a. Mention five characteristics of a living being.
b. What is periodic motion? Give one example.
c. What do the living and non-living have in common?
d. When is a body said to be in motion in relation to an observer?
e. What is curvilinear motion? Give one example.
f. When is a body said to be at rest?

Q.VII. Answer the following in 40 words:
a. Growth, we say, is a characteristic of a living being. But some nonliving things like crystals also grow. Can you differentiate between the two kinds of growth?
b. What happens to the wastes produced in a plant body?
c. Differentiate between living and non-living. Mention any five points.
d. What is the difference between rotational motion and circular motion? Explain with examples.
e. Quite often, a body has two types of motion at the same time. Give two examples of this.
f. Saina and Megha are friends. They were riding on their bicycle. Saina said that motion of wheel of cycle is linear but Megha argued that motion of cycle wheel is rotational.

Oral question/answer-

Question 1: Name a living thing that does not move and a non-living thing that moves.
Answer : Plants are living organisms that do not move from one place to another. A car is non-living thing that can move from one place to another.

Question 2: Give two examples each of living thing that: a. start life as single cells but develop more cells b. never have more than one cell
Answer : a. Living organisms such as humans and dogs begin their life as a single cell (zygote) and later develop more cells. b. Amoeba and Paramecium exist as single cells throughout their lives.

Question 3: How is growth in a crystal different from the growth in your body?
Answer : In a crystal, growth occurs by the addition of materials from external sources. However, growth in our body occurs within the body by division of cells inside the body. Thus, the growth of crystal is determined by external materials whereas, the growth of our body depends on internal materials.

Question 4: If a seed is inserted upside down into soil, in which direction will its stem and roots grow? Which feature of living thing does this show?
Answer : The roots of a seed that is inserted upside down in the soil will grow downwards toward the Earth and the stem will grow upwards away from the Earth. Thus, the direction of growth of roots and stem does not change if a root is inserted upside down in the soil. This feature suggests that all living organisms respond to stimulus. The response in this case is governed by the gravity.

Question 5: What is the main function of respiration in living things?
Answer : The primary function of respiration is to provide energy to the living things. Living things obtain oxygen by respiration, which is used for the oxidation of food to release energy. This energy is used by living things to perform all functions.

Short question answers:

Question 1: Why do animals move around?
Answer : Animals move around in search of food, shelter and to escape from predators or enemies.

Question 2: Give an example of movement in plants.
Answer : Example of movement in plants: A sunflower turns its face towards the sun due to phototropism.

Question 3: What are cells? Are all living things made up of cells?
Answer : Cells are the fundamental units of all living organisms. Yes, all living things are made up of cells. In addition, some living organisms are just single celled (unicellular organisms).

Question 4: There is some growth in unicellular organisms. How do they grow?
Answer : Unicellular organisms show some growth by an increase in the size of the single cell that constitutes the organism.

Question 5: Give an example of a stimulus and a response.
Answer : Example of a stimulus and a response: If you accidentally touch a hot object, you automatically withdraw your hand. The heat of the hot object is the stimulus and you, withdrawing your hand is the response to the stimulus

Question 6: How are autotrophs different from heterotrophs?
Answer : Autotrophs
They prepare their own food by the process of photosynthesis
Example: Green plants
Heterotrophs
They depend upon other organisms for food.
Example: Animals

Question 7: All living things take in oxygen. What function does oxygen perform in the body?
Answer : The oxygen taken in by living things during breathing is combined with the food that is digested by them to produce energy.

Question 8: Name three waste products that we excrete.
Answer : The three waste products that we excrete are:
1. Sweat
2. Urine
3. Exhaled air

Long question answers:

Question 1: Explain with an example what is meant by 'living things respond to stimuli'.
Answer : Living things respond to changes in their environment. For example, if you touch the leaves of the Mimosa (touch-me-not) plant, the leaves droop. In this case, the plant is responding to the stimulus of touch by drooping its leaves.

Question 2: How do living things grow? Some non-living things also grow. How is their growth different from the growth of living things?
Answer : Living things grow by the division of cells. Unicellular organisms such as Amoebae grow by an increase in the size of the single cell that makes up the organism. Non-living things grow by the addition of material from outside. For example, a pile of sand will grow if more sand is added to it.

Question 3: List three ways in which living things reproduce, giving one example of each.
Answer : Three ways in which living things reproduce are:
1. Some living things produce buds which grow into new organisms. For example, potatoes produce buds, known as eyes which grow into new potato plants.
2. Mammals such as humans give birth directly to young ones.
3. Some snakes, birds and crocodiles lay eggs and the young ones hatch from the egg.

Question 4: List four different ways in which organisms carry out exchange of gases for respiration, with one example of each.
Answer : All living organisms exchange gases with the environment. The means are as follows:
1. Fishes respire using their gills.
2. Earthworms use their skin for respiration.
3. Insects such as cockroaches breathe through several tracheal tubes in their bodies.
4. Humans and many other animals such as cows, goats etc. respire through external nostrils, which supplies air to their lungs.

Question 5: Explain phototropism and geotropism in plants. Are there any similar examples in the animal world also?
Answer : If a plant is potted near a window, its stem will bend toward the light as it grows. The growth of a plant towards light is known as phototropism. In the same way, the roots of plants grow towards the earth and the stem grows in the opposite direction. This is an example of geotropism. In animals, cockroaches and earthworms show negative phototropism. They move away from light. In the same way, Paramecium swims in the opposite direction of the Earth's gravity and shows negative geotropism.

Question 6: Explain giving examples what you mean by a 'species'.
Answer : Each type of living organism has many individuals which are broadly similar to each other. Individuals may differ slightly but their behaviour, habits or appearance are quite similar. Such a group constitutes a species. Members of a species inhabit the same environment, eat the same kind of food and reproduce among themselves. For example, all pigs are a species, humans form a species, oak trees are a species of trees etc