Skip to content

Answer key

Chapter: 02. Physical And Chemical Changes

humidity
slow
iron sulphide
non-periodic
chemical
effect
freezing
hydrogen
undesirable
deposition
charred sugar
natural
surface
reversible
glucose
soil erosion
endothermic
sublimation
fast
exothermic
periodic
physical
oxygen
evaporation
iron oxide
 
Want to print your doc?
This is not the way.
Try clicking the ··· in the right corner or using a keyboard shortcut (
CtrlP
) instead.