Conversion of 7 m into cm gives_______

(a)

70 cm

(b)

700 cm

(c)

7 cm

(d)

7000 cm

While measuring the length of an object using a ruler, the position of your eye should be

(a)

Left side of the point.

(b)

Vertically above the point where the measurement is to be taken.

(c)

Right side of the point

(d)

Any where according to one’s convenience.

___________is used to measure the accurate time of the activity.

(a)

Clock

(b)

Watch

(c)

Stop clock

(d)

Measuring

Unit of speed is__________

(a)

m

(b)

s

(c)

kg

(d)

m/s

Gita rides with her father’s bike to her uncle’s house which is 40 km away from her home. She takes 40 minutes to reach there.
Statement 1: She travels at a speed of 1 km/minute.
Statement 2: She travels at a speed of 1 km/hour.

(a)

Statement 1 alone is correct.

(b)

Statement 2 alone is correct.

(c)

Both statements are correct.

(d)

Neither statement 1 nor statement 2 is correct.

People walking in a crowded street is example of_________motion

(a)

linear

(b)

circular

(c)

rotatory

(d)

zigzag

______ is not made of matter

(a)

gold ring

(b)

iron nail

(c)

light ray

(d)

oil drop

Lighter impurities like dust when mixed with rice or pulses can be removed by __________

(a)

filtration

(b)

sedimentation

(c)

decantation

(d)

winnowing

The space between ____________ particles is the greatest one.

(a)

solid

(b)

liquid

(c)

gas

(d)

cold

Organs of absorption is__________

(a)

Root

(b)

Stem

(c)

Leaf

(d)

Flower

The habitat of water hyacinth is

(a)

Aquatic

(b)

Terrestrial

(c)

Desert

(d)

Mountain

The underground part of the main axis of a plant is known as_________.

(a)

shoot

(b)

node

(c)

root

(d)

leaf

Which of the following are the characteristics of living beings?
(i) Respiration
(ii) Reproduction
(iii) Adaptation
(iv) Excretion
Choose the correct one

(a)

(i), (ii), and (iv) only

(b)

(i), (ii) only

(c)

(ii) and (iv) only

(d)

(i), (ii), (iii) and (iv)

Choose the set that represents only biotic components of a habitat.

(a)

Tiger, Deer, Grass, Soil

(b)

Rocks, Soil, Plants, Air

(c)

Sand, Turtle, Crab, Rocks

(d)

Aquatic plant, Fish, Frog, Insects

Lizards are walk with four legs and is known as

(a)

Bipedal

(b)

Tripedal

(c)

Monopedal

(d)

quadripedal

Scurvy is caused due to the deficiency of______________.

(a)

Vitamin A

(b)

Vitamin B

(c)

Vitamin C

(d)

Vitamin D

We should include fruits and vegetables in our diet, because _______.

(a)

They are the best source of Carbohydrates

(b)

They are the best source of Proteins

(c)

They are rich in minerals and Vitamins

(d)

They have high water content

_____________is the highly rich source of protein

(a)

nuts

(b)

grams

(c)

chicken

(d)

soya bean

___________is an a-cellular agent that replicates only inside the cells ofthe other living organism.

(a)

Bacteria

(b)

Protozoa

(c)

Fungi

(d)

Virus

When was the first computer introduced?

(a)

1980

(b)

1947

(c)

1946

(d)

1985

Complete the web chart.

Classify the plants on the basis of their habitat.

What are the body parts of a snake?

Mention any two viral diseases.

Write a short note on Data.

What is thermal expansion?

Identify the conductor from the following figures.

What is a solution?

Define the term "Trachea".

Give the main difference between a pure substance and an impure substance.

Fill up the following chart.

Property	Definition	Basic unit	Instrument used for measuring
Length
Mass
Volume
Time

Fill with examples:

Complete the map by filling the blanks

Rahul wants to make an electric circuit. He has a bulb, two wires, a safety pin and a piece of copper. He does not have any electric cell or battery. Suddenly he gets some idea. He uses a lemon instead of a battery and makes a circuit. Will the bulb glow?

When a candle is lit the following changes are observed.
a. Wax melts.
b. Candle keeps burning.
c. The size of the candle decreases.
d. The molten wax solidifies
e. Which of the changes can be reversed? Justify your answer.

Why is the heart divided into two halves by a thick muscular wall?

Look at the picture given below and explain the method of separation illustrated.

Mention the features that help a bird to fly is the air?

Distinguish between heat and temperature.

Can the cell used in the clock gives us an electric shock? Justify your answer.

What type of changes is associated with germination of a seed? Explain

Why do traffic assistants wear a mask on duty?

Identify any four parts of the Plant cell.

Write about the contribution of Robert Hooke in cell biology.

Differentiate between the voluntary muscles and involuntary muscles.

A vehicle covers a distance of 400km in 5 hour. Calculate its speed.