Two spheres have equal mass and volume in the ratio 2:1. The ratio of their density is ________.

(a)

1:2

(b)

2:1

(c)

4:1

(d)

1:4

1litre = ________ cc

(a)

100

(b)

1000

(c)

10

(d)

0.1

The shortest distance between the earth and the sun is called as _______ position.

(a)

Light year

(b)

normal

(c)

perihelion

(d)

aphelion

Average speed of a moving object is equal to the magnitude of its average velocity when it travels.

(a)

in a straight line without turning back

(b)

in a circle

(c)

back and forth

(d)

in a zig-zag path

An atom of Oxygen (O) and two atoms of hydrogen (H₂) combine to form a molecule of ____________

(a)

hydrogen

(b)

ozone

(c)

water

(d)

none

____________ are generally hard and shiny elements.

(a)

Non-metals

(b)

Metals

(c)

Metalloids

(d)

None

The atomic number of an atom is the ______.

(a)

Number of neutrons

(b)

Number of protons

(c)

Total number of protons and neutrons

(d)

Number of atoms

The positively charged particle is _________

(a)

electron

(b)

proton

(c)

neutronnone

(d)

none

Pollinators are _________.

(a)

Wind

(b)

Water

(c)

Insect

(d)

All the above

Tobacco chewing causes ________ .

(a)

Anamia

(b)

Periodontitis

(c)

Tuberculosis

(d)

Pneumonia

Which technology shows the computer-drawn pictures as real picture?

(a)

Inkscape

(b)

Photo Story

(c)

Virtual Reality

(d)

Adobe Illustrator

Small amounts of electrical current are measured in milliampere (mA). How many milliampere are there in 0.25 A ?

(a)

2.5 mA

(b)

25 mA

(c)

250 mA

(d)

2500 mA

________is an example of a periodic change.

(a)

Earthquake

(b)

Formation of rainbow in sky

(c)

Occurrence of tides in seas

(d)

Showering of rain

_______ helps in cell division

(a)

Endoplasmic reticulum

(b)

Golgi complex

(c)

Cnetrivole

(d)

Nucleus

Tux Math software helps in learning the ________.

(a)

Painting

(b)

Arithmetic

(c)

Programming

(d)

Graphics

Light is a form of_______.

(a)

matter

(b)

energy

(c)

medium

(d)

particle

Sivarajan placed a meter stick in the playground at 7.00 am in the morning. How will the shadow of the stick at noon look in comparison to the one in the morning.

(a)

There will be no shadow

(b)

The shadow will be longer and on the opposite side as the sun

(c)

The shadow will be shorter and on the same side as the sun

(d)

The shadow will be shorter

When you place a natural fibre in a flame it______

(a)

melts

(b)

burns

(c)

gets nothing

(d)

explodes

A drug effective in the treatment of pneumonia, and bronchitis, is ______.

(a)

Streptomycin

(b)

Chloramphenicol

(c)

Penicillin

(d)

Sulphaguanidine

_______is the daily essential product which is obtained from cattle.

(a)

Egg

(b)

Milk

(c)

Both of them

(d)

None of them