General Science

Investigating Space
Small telescopes have lenses to make faraway objects look
smaller
brighter
bigger
colored
Author: rikazzz Comment
Atoms and Atom Model
The number and arrangement of electrons in an atom are important because it controls
the physical properties of atom
the chemical properties of atom
the size of atom
all of above
Author: rikazzz Comment
Electric Circuits and Currents
A simple enclosed length of wire that has a low melting point is known as
resistor
fuse
circuit breaker
thermistor
Author: rikazzz Comment
Dispersion of Light
‘Prisms’ with total internal reflection are used in
telescopes
glasses
mirrors
side mirrors of cars
Author: rikazzz Comment
Physical and Chemical Changes
Photosynthesis is an example of
condensation reaction
exothermic reaction
reversible reaction
endothermic reaction
Author: rikazzz Comment
Dispersion of Light
When light enters a dense medium, it
speeds up
slows down
increases its frequency
increases its wavelength
Author: rikazzz Comment
Sound Waves
Sound can travel through air because
air has pressure
air has humidity
air has particles
air has temperature
Author: rikazzz Comment
Transportation in Plants
The contents in the root hair make
cell membrane
cell wall
cell cap
centrioles
Author: rikazzz Comment
Atoms and Atom Model
In methane gas, each carbon atom is bonded with
two oxygen atoms
two hydrogen atoms
three oxygen atoms
four hydrogen atoms
Author: rikazzz Comment
Reproduction in Plants
The ovule turns into a
fruit
flower
ball of cells
ball of pollen grains
Author: rikazzz Comment

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