General Science

Elements and Compounds
Air ships and balloons use gas called
oxygen
hydrogen
helium
neon
Author: rikazzz Comment
Reproduction in Plants
As the embryo grows, ovule turns into a
fruit
flower
seed
ovary
Author: rikazzz Comment
Mixtures
Mixtures may comprise
element
compounds
solution
both a and b
Author: rikazzz Comment
Energy Resources
The energy resources which would not run out are called
renewable
non renewable
original
escapable
Author: rikazzz Comment
Atoms and Atom Model
When “Uranium-238” is bombarded with neutrons, it produces
heat
electricity
nuclear energy
light
Author: rikazzz Comment
Physical and Chemical Changes
When the liquid is cooled down, it changes into solid, this process is known as
melting
freezing
condensation
sublimation
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Solutions
Neutral substances have pH
3
1
0
7
Author: rikazzz Comment
Investigating Space
Earth sized white dwarf has a mass equal to that of
Moon
Sun
Jupiter
Saturn
Author: rikazzz Comment
Reproduction in Plants
Inside every seed, there is a miniature plant known as
zygote
embryo
ovule
endosperm
Author: rikazzz Comment
Physical and Chemical Changes
The color of copper sulfate crystals is
black
blue
orange
white
Author: rikazzz Comment

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