Light
Microbes
Disease
Magnets
Electromagnets
100
300,000 km/s
What is the speed of light?
100
Bacteria, viruses and fungi.
What are the three types of microbes?
100
Skin.
What is the organ that covers your body and prevents disease-causing microbes from entering?
100
North and south.
What are the names of the two poles of a magnet?
100
Solenoid
What is the name given to a coil of wire carrying a current?
200
When light bounces off a surface.
What is reflection?
200
1/1,000,000 mm.
What is the size of a bacterium?
200
Immune system.
What is the name of the system responsible for fighting microbes that get into your body?
200
The only three magnetic materials.
What is the link between iron, nickel and cobalt?
200
Iron core.
What is placed inside an electromagnet to increase its power?
300
The angle of incidence is the same as the angle of reflection.
What is the law of reflection?
300
Yeast
What is the name of the microbe used to produce beer and bread?
300
White blood cell.
What is the name of the cell that destroys microbes in the bloodstream?
300
From north to south.
What is the direction that the arrows point on magnetic field lines?
300
Plotting compass.
What is used to map the magnetic field around an electromagnet?
400
Cyan
What is the colour of light produced by mixing green and blue light?
400
Fermenting.
What is the process by which yeast produces alcohol?
400
Engulfing
What is the name of the process by which white blood cells "eat" disease-causing microbes?
400
Repulsion.
What is the process by which two similar poles push each other away?
400
Making the clanger swing backwards and forwards.
What is an electromagnet used for in a school bell?
500
Refraction
What is the name of the process by which light changes direction when entering a new medium?
500
37 degrees Celsius.
What is the best temperature for growing a culture of microbes in yoghurt?
500
Penicillin
What is the name of the first widely-used antibiotic, discovered by Alexander Flemming?
500
Increase the strength of the electromagnet.
What effect will adding more turns to your solenoid, increasing the current or adding an iron core have on your electromagnet?
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