Science EYE Study

Pregunta	Respuesta
Science practical: a lit splint or match placed in the gas:	Hydrogen gas test
Science practical: A glowing splint placed in the gas:	Oxygen gas test
Science practical: the gas is bubbled through limewater	Carbon dioxide test
Science practical: Hydrogen result	Burns with a squeaky pop
Science practical: Carbon dioxide result	Limewater turns milky
Science practical: Oxygen test result	Splint relights
States of matter: particles are packed closely together in a lattice:	Solid
States of matter: The particles are far apart and move very quickly	Gas
States of matter: Can be compressed	Gas
States of matter: Can take the shape of its container	Liquid/gas
States of matter: The particles are free to move but are very close together:	Liquid
States of matter: The particles vibrate in a fixed position:	Solid
Solid to liquid	Melting/liquification
Liquid to gas	Evaporation
Solid to gas	Sublimation
Gas to liquid	Condensation
Liquid to solid	Freezing/solidification
Light bounces off an object	Reflection
Light passes through an object	Transmission
Light energy is transformed	Absorption
Light changes speed and/or direction in a different substance	Refraction
When light is spread out into its different colours (spectrum)	Dispersion
Four rules that must be followed when drawing ray diagrams	1. Use a ruler 2. Draw an arrow on EVERY light ray drawn going towards the surface 3. Draw an arrow on EVERY light ray drawn going away from the surface 4. Draw the path of at least 3 light rays
Name 2 common uses of concave mirrors	1. Torches/flashlights 2. Solar cookers
Name 2 common uses for convex mirrors	1. Blind corner mirror 2. Security mirror
The clear front part of the eye that refracts light slightly towards the pupil	Cornea
The hole that allows light to enter the eyeball	Pupil
The coloured part of the eye that controls the size of the pupil	Iris
The convex shaped object that focuses light onto the retina	Lens
The layer of cells that collect light and produce electrical signals	Retina
The nerve that sends signals to the brain from the eye.	Optic nerve
The time taken for a planet to rotate once on its axis?	A day/24 hours
T	A
The change in average temperature and weather due to the tilt of a planet's axis	S
The apparent change of the moon over a month	M
The rise and fall of the sea due to the gravitational pull of the moon	Tides
The moon passing through the shadow of the earth	Lunar eclipse
T	Solar eclipse
What is the name of the moon phase when there is a solar eclipse?	New moon
What is the name of the moon phase when there is a lunar eclipse?	F
Where do all stars form?	A
W	Gravitational forces (gravity)
What process produces light and heat in a star?	Nuclear fusion
What name is given to a very large star?	A giant star
What is an exploding star called?	A nova or supernova
What name is given to a very small star?	A
Describe what happens to a medium-sized star later in its life	Increases in size forming a red giant star THEN Forms a planetary nebula THEN Cools and shrinks to a white dwarf star
D	Increases in size forming a supergiant star THEN Explodes in a supernova and forms a black hole OR Explodes in a supernova and
A spherical (or near-spherical) object that orbits around the sun	P
Provides a gravitational pull on the planets to keep them in orbit	T
A natural or man-made object that orbits a planet	A satellite
The natural satellite of the earth	The moon
Chemical or physical change: the change can be easily reversed	Physical
	C
Chemical or physical change: Heat energy is absorbed or released	Both physical and chemical
T	C

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	Creado por Declan Squire - SCHOOL ACCOUNT hace alrededor de 4 años