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What is a symposium?
A group consisting of several people who have come up together to achieve a task
What is cellular dysfnction.
Imbalances in osmotic pressure
Types of forces
Gravitational force
Electric force
Magnetic force
Frictional force (push or pull)
Nuclear force
What is matter by using classifications
Matter is solids,liquids and gases.
Why is the sun appear very big compared to other stars?
Because it is the closest to the earth.
What is an aperture?
A small hole or opening
What is osmotic pressure
The external pressure exerted so that there is no net movement of molecules across the membrane
Energy is measured in?
Joules (J).
What is viscosity as reffered in matter
Viscosity the ability of liquids to resist flow
What produces gasoline?
Decomposed fossils and organic matter which forms crude oil..
What is( BMI )?
The body mass index
In osmosis we say osmotic pressure depends on a colligative property.
What is colligative property?
It means "molar concentration"
What are examples of forces applied in our daily activities?
Ball kicking when playing
Cycling
Pushing an object ...e.t.c
How many atoms make up oxygen
One
Who invented elements?
John Dalton.
Who discovered elements of the periodic table?
John Dalton.
What is osmosis
The movement of solvent molecules from an area of higher concentration to a region of low concentration
Name five forms of energy
Light energy
Heat energy
Mechanical energy
Gravitational energy
Sound energy
How can H2O change to gas?
By evaporation.
Methods of heat transfer include?
Conduction
Convection
Radiation.
(a) Who was the first person to document about osmosis.
(b) Which instrument was used to investigate osmosis.
(a) Jean Nollet
(b) Endosmeter invented by Dutrochet
What is the difference between a permeable membrane and a semi permeable membrane
A permeable membrane is a membrane that can allow anything across it while a semi permeable is a membrane that can allow some things across while others cannot.
What makes heat rise
It does not rise
Only hot air rises which causes
Various circumstances like global warming.
Name two gases we breathe
Oxygen and carbon dioxide
(O2 and CO2).
What is the name of the lightest element?
Hydrogen (H)