end of year test

Question 1

what are the 2 types of charge

Answer 1

positive and negative

Question 2

what does positive and negative charge mean

Answer 2

positive has too few electrons and negative has too many

Question 3

what is net charge due to

Answer 3

net charge is always
due to electron
transfer – protons
moving about would
change the elements you
are dealing with

Question 4

what is osmosis

Answer 4

Osmosis is the movement of water molecules from an area where they are in high concentration to an area where they are in low concentration, across a partially permeable membrane.
In simpler terms, imagine water moving through a barrier that only lets water through (like a cell membrane) to balance out the concentration of water on each side. Osmosis is essential in living organisms because it helps cells maintain the right balance of water and nutrients. For example, plant roots use osmosis to absorb water from the soil, and your cells use it to keep hydrated.