Quantity that can be measured is called_______

(a)

Physical quantity

(b)

unit

(c)

Measurement

(d)

motion

Twenty decimetre is equal to_________

(a)

2 km

(b)

20 cm

(c)

2 metre

(d)

20 metre

The moon's gravitational pull is one_____________of the earth's pull.

(a)

seventh

(b)

sixth

(c)

Fifth

(d)

Fourth

Which among the following is an oscillatory motion?

(a)

Rotation of the earth about its axis

(b)

Revolution of the moon about the earth

(c)

To and fro movement of a vibrating string

(d)

All of these.

People walking in a crowded street is example of_________motion

(a)

linear

(b)

circular

(c)

rotatory

(d)

zigzag

Periodic motion among the following is___________

(a)

sabling swing in wind

(b)

revolution of the moon around the earth

(c)

a coconut falling from a tree

(d)

paper flight moving

A___________ is the fastest land animal

(a)

Horse

(b)

Lion

(c)

Cheetah

(d)

Tiger

Filtration method is effective in separating ___________ mixture

(a)

solid-solid

(b)

solid-liquid

(c)

liquid-liquid

(d)

liquid-gas

One dot that you make with Your pen has more than ___________ Lakh Molecule

(a)

One

(b)

Two

(c)

Four

(d)

Three

Very tiny insoluble solid separated from a liquid is__________

(a)

Winnowing

(b)

Churning

(c)

Sieving

(d)

Filtration

The habitat of water hyacinth is

(a)

Aquatic

(b)

Terrestrial

(c)

Desert

(d)

Mountain

___________ is a natural science concerned with study of life and living organisms.

(a)

Chemistry

(b)

Biology

(c)

Zoology

(d)

Physics

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

(a)

shoot

(b)

node

(c)

root

(d)

leaf

The __________ forest in South America produces half of the world's oxygen supply.

(a)

Taiga

(b)

Congo rain

(c)

Amazon rain

(d)

Darin tree

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)

Lizards are walk with four legs and is known as

(a)

Bipedal

(b)

Tripedal

(c)

Monopedal

(d)

quadripedal

Among the following which one is Bird Sanctuary located in Tamilnadu___________.

(a)

Vayanad

(b)

Guindy Park

(c)

Vedanthangal

(d)

All

Bacteria are very small _________ microorganism.

(a)

Prokaryotic

(b)

Eukaryotic

(c)

Protozoa

(d)

Acellular

_____________is the highly rich source of protein

(a)

nuts

(b)

grams

(c)

chicken

(d)

soya bean

___________is the bacterial disease, it transit through containination of wounds wit" the bacteria.

(a)

Cholera

(b)

Tetanus

(c)

Typhoid

(d)

Pneumonia

When was the first computer introduced?

(a)

1980

(b)

1947

(c)

1946

(d)

1985

Pick out the odd one.
a. Calculator
b. Abacus
c. Flash card
d. Laptop

(a)

Calculator

(b)

Abacus

(c)

Flash card

(d)

Laptop

One litre of water at 30^o C is mixed with one litre of water at 50^o C. The temperature of the mixture will be

(a)

80^o C

(b)

More than 50°C but less than 80^o C

(c)

20^o C

(d)

around 40^o C

Choose the symbol for battery

(a)

(b)

(c)

(d)

_____________

__________ is a good conductor

(a)

silver

(b)

wood

(c)

rubber

(d)

plastic

When ice melts to form water, change occurs in its

(a)

position

(b)

colour

(c)

state

(d)

composition

Out of the following an example of a desirable change is

(a)

rusting

(b)

change of seasons

(c)

earthquake

(d)

flooding

Air pollution leading to Acid rain is a

(a)

reversible change

(b)

fast change

(c)

natural change

(d)

human made change

The constituent of air that supports combustion is _________________

(a)

Nitrogen

(b)

carbon-di-oxide

(c)

Oxygen

(d)

water vapour

_______ and _________ are the two gases, which when taken together, make up about 99 percentage of air.
I. Nitrogen
II. Carbon-di-oxide
III. Noble gases
IV. Oxygen

(a)

I and II

(b)

I and III

(c)

II and IV

(d)

I and IV

The unit of measurement used for expressing dimension (size) of cell is _________

(a)

centimeter

(b)

millimeter

(c)

micrometer

(d)

meter

Under the microscope Priya observes a cell that has a cell wall and distinct nucleus. The cell that she observed is

(a)

a plant cell

(b)

an animal cell

(c)

a nerve cell

(d)

a bacteria cell

Most organelles in an eukaryotic cell is found in the

(a)

Cell wall

(b)

cytoplasm

(c)

nucleus

(d)

Vacuole

Circulatory system transports these throughout the body

(a)

Oxygen

(b)

Nutrient

(c)

Hormones

(d)

All of these

Which one of the following is an output device?

(a)

Mouse

(b)

Keyboard

(c)

Speaker

(d)

Pendrive

Which one of the following is an input device?

(a)

Speaker

(b)

Keyboard

(c)

Monitor

(d)

Printer

1 Metre, 1 centimetre, 1 kilometre, and 1 millimetre.

Define the term matter.

Give an example for mixture and justify your answer with reason.

Classify the plants on the basis of their habitat.

Mention few desert plants.

Name the locomotory organ of Amoeba.

Write two examples for each of the following.
a) Food items rich in fat.
b) Vitamin deficiency diseases.

What are the main features of a microorganism?

What is a Computer?

Write a short note on Data.

Make a list of electrical equipments at home which we get heat from.

Identify the conductor from the following figures.

Assertion (A): It is very easy for our body to receive electric shock.
Reason (R): Human body is a good conductor of electricity.
a. Both A and R are correct and R is the correct explanation for A.
b. A is correct, but R is not the correct explanation for A.
c. A is wrong but R is correct.
d. Both A and R are correct and R is not the correct explanation for A.

What kind of a change is associated with decaying of a plants?

Define a slow change.

What is a solution?

What will happen if we remove plants from the aquarium?

What will happen if we remove the fish from the aquarium and keep it (with green plants) in a dark place?

What are the essential components of a cell?

What are the organelles found only in plant cell?

Which one is called as “Area of movement"?

Define the term "Trachea".

Name the five important sense organs.

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

A rubber ball changes its shape on pressing. Can it be called a solid?

Compare the taproot and fibrous root systems.

Differentiate between Unicellular and Multicellular organisms.

Distinguish between heat and temperature.

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

Can deforestation be considered a desirable change? Explain.

Why do traffic assistants wear a mask on duty?

Identify any four parts of the Plant cell.

Write a short note on rib cage.

How will you measure the volume of irregular objects?

What is motion? Classify different types of motion with examples.

Fill with examples:

Using suitable apparatus from your laboratory separate the mixture of chalk powder, mustard oil, water and coins. Draw a flow chart to show the separation process

Make a list of the functions of root and stem.

Tabulate the vitamins and their corresponding deficiency diseases.

Explain in detail above the applications of computer.

When a window is accidentally left open on a winter night, will you feel uncomfortable because the cold is getting in, or because the heat is escaping from the room?

Write short notes on conductors and insulators.

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.

How do plants and animals maintain the balance of oxygen and carbon-dioxide in air?

Tabulate any five cell organelles and their function.

What will happen if the diaphragm shows no movement?