Choose the correct one

(a)

km > mm > cm > m

(b)

km > mm > m > cm

(c)

km > m > cm > mm

(d)

km > cm > m > mm

Five kilometre is equal to_____________

(a)

500 cm

(b)

500 m

(c)

5000 m

(d)

5000 cm

Volume of solid is_________

(a)

m²

(b)

m

(c)

m³

(d)

none

Unit of speed is__________

(a)

m

(b)

s

(c)

kg

(d)

m/s

People walking in a crowded street is example of_________motion

(a)

linear

(b)

circular

(c)

rotatory

(d)

zigzag

Usain Bolt crossed 100 metre in____________seconds and made a world record

(a)

9.58

(b)

9.83

(c)

9.85

(d)

9.38

A cheetah running with an average speed of_____________

(a)

112 kmIh

(b)

121 km/h

(c)

211 km/h

(d)

122 km/h

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

(a)

filtration

(b)

sedimentation

(c)

decantation

(d)

winnowing

Very tiny insoluble solid separated from a liquid is__________

(a)

Winnowing

(b)

Churning

(c)

Sieving

(d)

Filtration

__________is a smallest particle

(a)

Molecule

(b)

Element

(c)

Atom

(d)

Substance

The important function of stomata is __________.

(a)

Conduction

(b)

Transpiration

(c)

Photosynthesis

(d)

Absorption

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

(a)

Chemistry

(b)

Biology

(c)

Zoology

(d)

Physics

Main axis of the shoot system is called____________.

(a)

stem

(b)

root

(c)

Leaf

(d)

buds

The first land plants are____________

(a)

Neem tree

(b)

hibiscus'

(c)

banyan tree

(d)

mosses and liver worts

The study of living beings or organisms is called

(a)

Psychology

(b)

Biology

(c)

Zoology

(d)

Botany

Lizards are walk with four legs and is known as

(a)

Bipedal

(b)

Tripedal

(c)

Monopedal

(d)

quadripedal

Camel passes___________amount of urine.

(a)

small

(b)

large

(c)

moderate

(d)

too large

Bacteria are very small _________ microorganism.

(a)

Prokaryotic

(b)

Eukaryotic

(c)

Protozoa

(d)

Acellular

Among the Vitamins which one is the water soluble Vitamin

(a)

Vitamin A

(b)

Vitamin B

(c)

Vitamin D

(d)

Vitamin E

80% of the world production of Moringa leaves is___________

(a)

China

(b)

Germany

(c)

India

(d)

Canada

Who is the father of computer?

(a)

Martin Luther King

(b)

Graham Bell

(c)

Charlie Chaplin

(d)

Charles Babbage

Who is the computer’s first programmer?

(a)

Lady Wellington

(b)

Augusta ado Lovelace

(c)

Mary Curie

(d)

Mary Comb

The unit of heat is

(a)

newton

(b)

joule

(c)

volt

(d)

celsius

The device which converts chemical energy into electrical energy is

(a)

fan

(b)

solar cell

(c)

cell

(d)

television

Electricity is produced in

(a)

transformer

(b)

power station

(c)

electric wire

(d)

television

Drying of wet clothes in air is an example of

(a)

Chemical change

(b)

Undesirable change

(c)

irreversible change

(d)

physical change

Formation of curd from milk is

(a)

a reversible change

(b)

a fast change

(c)

an irreversible change

(d)

an undesirable change

Air pollution leading to Acid rain is a

(a)

reversible change

(b)

fast change

(c)

natural change

(d)

human made change

Gas exchange takes place in plants using __________

(a)

Stomata

(b)

Chlorophyll

(c)

Leaves

(d)

Flowers

Nitrogen is used in the food packaging industry because it ________________

(a)

provides colour to the food

(b)

provides oxygen to the food

(c)

adds proteins and minerals to the food

(d)

keeps the food fresh

The ‘control centre’ of the eukaryotic cell is

(a)

Cell wall

(b)

Nucleus

(c)

Vacuoles

(d)

Chloroplast

Which one of the following is not an unicellular organism?

(a)

Yeast

(b)

Amoeba

(c)

Spirogyra

(d)

Bacteria

Most organelles in an eukaryotic cell is found in the

(a)

Cell wall

(b)

cytoplasm

(c)

nucleus

(d)

Vacuole

Breakdown of food into smaller molecules in our body is known as

(a)

Muscle contraction

(b)

Respiration

(c)

Digestion

(d)

Excretion

Name the cable that connects CPU to the Monitor

(a)

Ethernet

(b)

Power Cord

(c)

HDMI

(d)

USB

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.

Mention few desert plants.

Relate the terms leaves and photosynthesis.

Name the locomotory organ of Amoeba.

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

Mention any two viral diseases.

Write a short note on Data.

Differentiate hardware and software.

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

In the given circuit diagram, which of the given switch(s) should be closed. So that only the bulb A glows.

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 happens when cane sugar is strongly heated? Mention any two changes in it.

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

What should be done if the clothes of a person catch fire accidentally? Why?

What type of cells do we have?

What are the organelles found only in plant cell?

Give any three examples of eukaryotic cell?

What are the three types of blood vessels?

Write any two functions of digestive system.

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

What method will you employ to separate cheese (paneer) from milk? Explain.

Distinguish between terrestrial and aquatic habitats.

Differentiate between Unicellular and Multicellular organisms.

Distinguish between heat and temperature.

Draw the circuit diagram for series connection.

Can deforestation be considered a desirable change? Explain.

Why do traffic assistants wear a mask on duty?

Write about the contribution of Robert Hooke in cell biology.

Differentiate between the voluntary muscles and involuntary muscles.

Fill up the following chart.

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

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

Fill with examples:

Distinguish the properties of solid, liquid and gas. Draw a suitable diagram.

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?

Tabulate the different components of an electric circuit and their respective symbols.

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 atmosphere essential for life on earth?

Draw a neat labelled diagram of a prokaryotic cell.

List out the functions of Endocrine system and Nervous system.