General Science

Heat Transfer
To prevent loss of heat through walls, the walls must be
insulated
conducted
painted black
painted dull
Author: rikazzz Comment
Electric Circuits and Currents
Atoms have same number of
protons and neutrons
electrons and neutrons
electrons and protons
positrons and photons
Author: rikazzz Comment
Digestive System
The process of breaking down food into smaller molecules is known as
digestion
breakage
crushing
grinding
Author: rikazzz Comment
Electric Circuits and Currents
Electricity is required to
light up homes
clean your car
flush the toilet
change weather
Author: rikazzz Comment
Solutions
‘Malic acid’ is present in
orange
lemon
apple
guava
Author: rikazzz Comment
Electric Circuits and Currents
Earth wire is connected to the
ground
appliance
power house
transformer
Author: rikazzz Comment
Sound Waves
Sound waves are converted by
speakers
computers
microphones
monitors
Author: rikazzz Comment
Forces Effects
A substance will float on surface of water if its density is less than
    liquid
    gas
    both a and b
    aqueous
Author: rikazzz Comment
Transportation in Plants
The phenomenon of movement of particles from higher concentration to lower concentration without the use of energy is known as
diffusion
osmosis
active transport
respiration
Author: rikazzz Comment
Atoms and Atom Model
The positive electrical charges of protons are balanced by
photons
neutrons
electrons
positrons
Author: rikazzz Comment

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